Suppose you have just read in a bunch of numbers into a list X. Write code that would compute the median of X. Recall: to find the median you need to sort X and then find the middle number. If there are an even number of elements in X you average the two middle numbers.
Answers
Certainly! Here's the code in R to compute the median of a list of numbers stored in a vector X:
R
Copy code
# Compute the median of a list of numbers
compute_median <- function(X) {
n <- length(X)
# Sort the list in ascending order
sorted_X <- sort(X)
if (n %% 2 == 1) {
# If the number of elements is odd, return the middle number
median <- sorted_X[(n + 1) / 2]
} else {
# If the number of elements is even, average the two middle numbers
median <- mean(sorted_X[n / 2:(n / 2 + 1)])
}
return(median)
}
# Example usage
X <- c(5, 1, 3, 2, 4)
result <- compute_median(X)
print(result)
In this code, the compute_median() function takes a vector X as input and returns the median value. It sorts the elements of X in ascending order using the sort() function.
If the number of elements in X is odd, it directly returns the middle number from the sorted list. If the number of elements is even, it computes the average of the two middle numbers using the mean() function.
You can modify the vector X with your own set of numbers or add more elements to test the code. The computed median will be printed as the output.
Please note that the code assumes X contains numerical values.
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Related Questions
Under ideal conditions, a truck with air brakes going 55 MPH would require a stopping distance of:
Answers
Under ideal conditions, a truck with air brakes going 55 MPH would require a stopping distance of 344 feet.
Stopping distance is the total distance covered by a vehicle from the time the driver perceives the need to stop to the point where the vehicle comes to a complete halt.
The stopping distance is determined by the vehicle's speed, brakes, tires, and roadway surface conditions.
Stopping distance can be determined by adding together the thinking distance and the braking distance. The thinking distance is the distance traveled by the vehicle before the driver can react.
The braking distance is the distance required by the vehicle to come to a halt once the driver applies the brakes.
Under ideal conditions, a truck with air brakes going 55 MPH would require a stopping distance of 344 feet.
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this is it dont anwser this is for my other account
Answers
Answer:
thanks for the poiunts
Explanation:
Bacterial defense systems make good tools for manipulating DNA because bacteria evolved the ability to cut and rearrange DNA. replicate both plasmid and chromosomal DNA. take up DNA from their environments.
Answers
Bacterial defense systems, particularly the CRISPR-Cas system, have become valuable tools for manipulating DNA in molecular biology research.
This is because bacteria have evolved the ability to recognize and cut foreign DNA as a defense mechanism against invading viruses or plasmids. The CRISPR-Cas system uses an RNA guide molecule to target and cut specific DNA sequences, which can be used to add, delete or modify genes in a genome.Bacteria also have the ability to replicate both their plasmid and chromosomal DNA, which has made them useful for the production of recombinant DNA and genetic engineering. Plasmids, small circular pieces of DNA that can replicate independently from the bacterial chromosome, can be manipulated and inserted into bacteria to produce desired proteins or to study gene expression. Chromosomal DNA can also be modified using bacterial transformation techniques, where foreign DNA is introduced into a bacterium and incorporated into its genome.
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explain what the buffer manager must do to process a read request for a page. what happens if the requested page is in the pool but not pinned?
Answers
When processing a read request for a page, the buffer manager must load the page into the buffer pool if it is not already there If the page is pinned, the buffer manager must wait until it is unpinned before it can be replaced with a different page.
When a read request for a page is received, the buffer manager must first determine if the requested page is already loaded into the buffer pool. If it is not, the buffer manager will load the page from disk into a buffer frame in the pool. This process is known as "content loaded."
Once the requested page is in the buffer pool, the buffer manager must then check if the page is currently pinned. A page is pinned when it is being used by a transaction and cannot be removed from the buffer pool until the transaction is complete. If the requested page is in the pool but not pinned, the buffer manager will simply return a pointer to the buffer frame containing the requested page.
If the requested page is already in the buffer pool but is pinned, the buffer manager must wait until the page is unpinned before it can be replaced with a different page. This can lead to a delay in processing the read request and potentially impact overall system performance.
In summary, when processing a read request for a page, the buffer manager must load the page into the buffer pool if it is not already there, and check if the page is pinned before returning a pointer to the buffer frame containing the requested page. If the page is pinned, the buffer manager must wait until it is unpinned before it can be replaced with a different page.
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The enforcement of OSHA standards is provided by federal and state
O master electricians
O lawmakers
O tax collectors
O safety inspectors
Answers
Answer:
Explanation:
Enforcing OSHA, Occupational Safety and Health Administration, standards is not a job for electricians, lawmakers or tax collectors. The right answer is safety inspectors.
2. Viscosity is a measure of how easily a fluid flow such as water. Thabo wants to investigate how viscosity of water varies with temperature which can be determined by the following correlation: u=c10 where u = viscosity (N/s. m²) T = temperature (K) C1 = 2.414 x 10-ʻ(N/s. mº) C2 = 247.8 K C3 = 140 K Using MATLAB, create a table for Thabo that shows the viscosity of water as a function of temperature in the range of 0° C (273.15 K) to 100° C (373.15 K) in increments of 5° C. Also, create a graph showing the value of viscosity as a function of temperature. [10 marks]
Answers
Answer:
Trust me the answer is B I took the quiz last week
A cube has a side length of 3x6 units. A smaller cube has a side length of x2 units. How many smaller cubes will fit in the larger cube? express your answer in simplified form.
Answers
27 smaller cubes can fit inside the larger cube if a cube has a side length of 3x6 units and smaller cube has a side length of x2 units.
It is stated in the question,
Side length of the smaller cube is units.The larger cube's side length is units.We must determine the number of smaller cubes that can fit inside the larger cube.
The formula gives the volume of a cube.
Volume = \((Side)^{3}\)
Volume of the larger cube = \((3x^{6} )^{2}\)
= 27 \(x^{18}\) \(unit^{3}\)
Volume of the smaller cube = \((x^{6} )^{3}\)
= \(x^{18}\) \(unit^{3}\)
Let the number of smaller cubes that can fit in the larger cube be given = n.
Volume of n cubes = n\(x^{18}\) \(unit^{3}\)
If 'n' smaller cubes occupy space inside the larger cube,
Volume of n smaller cubes = Volume of a larger cube
n ( \(x^{18}\)) = 27 (\(x^{18}\))
n = 27
As a result, 27 smaller cubes can fit inside the larger cube.
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A basic 3-input logic circuit has a LOW on one input and a HIGH on the other two inputs, and the output is LOW. What type of logic circuit is it
Answers
Answer:
any of AND, NOR, XOR
Explanation:
An AND gate will give a Low output for any input Low. The logic circuit could be an AND gate.
A NOR gate will give a Low output for any input High. The logic circuit could be a NOR gate.
An XOR gate will give a Low output for an even number of High inputs. The logic circuit could be an XOR gate.
The logic circuit could be any of ...
AND or NOR or XOR
__
Additional comment
What you consider a "basic" gate is not defined here. All of these are catalog items. If you consider only AND, OR, and NOT to be the basic gates, then your answer is AND.
20. A spur gear pinion and gear shown on a drawing have a diametral pitch of 12. The pitch radius of the pinion is 1.500 inches and the gear ratio is
specified to be 1:3. On the print, you would expect the pitch diameter of the gear to be
OA. 9.00 inches.
Answers
On the print you would expect the pitch diameter of the gear to be 9.00 inches. Option A is right.
How to solve for the diameterGear ratio = 1/3
This is solved as number of teeth on pinion / teeth on gear
= Np/Ng
The pitch diameter = 1.5 x 2
= 3
Diametral pitch = 12
NP = 3 x 12 = 36
This is the teeth on piston
Ng = 3NP
Ng = 3 * 36
= 108
Hence pitch diameter = 108/12 = 9
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The posted speed limit is the highest speed that you are
permitted to drive unless
Answers
Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
Answer:
d
Explanation:
identify the conclusions that can be drawn from the given premises using existential generalization. (check all that apply.)Check All That Apply a. There exists a non-six-legged creature that eats a six-legged creature. b. There does not exist a non-six-legged creature that eats a six-legged creature. c. There exists a noninsect that eats an insect d. There does not exist a noninsect that eats an insect.
Answers
A non-six-legged animal that eats a six-legged animal does not exist. Using existential generalization, it is possible to infer from the stated premises that there is a non-insect that eats an insect.
Existential generalization rule: what is it?A valid method of inference in predicate logic that enables one to proceed from a specific statement, or one instance, to a quantified generalized statement, or existential proposition, is known as existential generalization (also known as existential introduction, or I).
What purpose does existential and universal instantiation serve?When something is true of everything, it must also be true of the specific thing that the constant c names. This is known as universal instantiation. When making existential generalizations, it is important to remember that if anything is true of if c is a specific constant, then it applies to at least something.
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What is the inductive reactance of a 20 mH inductor at a frequency of 100Hz?
Answers
Answer:
The correct approach is "12.56 Ω".
Explanation:
The given values are:
Frequency,
f = 100 Hz
Inductor length,
L = 20 mH
Now,
The inductive reactance will be:
⇒ \(X_L=2 \pi fL\)
On putting the estimated values, we get
⇒ \(=2 (3.14)\times 100\times 20\times 10^{-3}\)
⇒ \(=12.56 \ \Omega\)
A continuous and aligned fiber-reinforced composite is manufactured using 80 vol% aramid fiber (a kevlar-like compound) embedded nylon 6-6. A part for a high-performance aircraft utilizes this composite. If the part experiences 953 lb-f (pounds force) along the fiber alignment axis, what is the force conveyed by the fibers ?
Answers
Answer:
the force conveyed by the fibers is 947.93 lb-f
Explanation:
Given the data in the question;
V_f = 80% = 0.8
V_m = 1 - V_f = 1 - 0.8 = 0.2
Now,
length of fibre L_f = length of Nylon L_n
V_f = A_f × L_f = 0.8
V_m = A_n × L_n = 0.2
so
V_f/V_m = A_f/A_n = 0.8/0.2
A_f/A_n = 4
now, the strains in fibre is equal to strains in nylon
(P/AE)f = (P/AE)n
P_f/A_fE_f = P_n/A_nE_n
P_f = (A_f/A_n)(E_f/E_n)(P_n)
P_f = ( 4 )( 131 / 2.8 )(Pn)
P_f = 187.14Pn
and P_n = Pf / 187.14
Hence
given that P_total = 953 lb-f
P_f + P_n = 953
P_f + ( P_f / 187.14 ) = 953
P_f( 1 + ( 1 / 187.14 ) ) = 953
P_f( 1.00534359 = 953
P_f = 953 / 1.00534359
P_f = 947.93 lb-f
Therefore, the force conveyed by the fibers is 947.93 lb-f
Select the word that best completes the sentence. Osha's standards require your employer to ensure that lighting, equipment, motors, machines, appliances, switches, controls and enclosures are constructed and installed to _____________ electrical dangers.
Answers
The word that best completes the sentence. is "MInimize"
Thus, Osha's standards require your employer to ensure that lighting, equipment, motors, machines, appliances, switches, controls, and enclosures are constructed and installed to MInimize electrical dangers.
What are OSHA Standards?OSHA standards are guidelines that specify how companies must safeguard their employees from dangers. OSHA rules are divided into four categories: general industry, building, maritime, and agriculture. (The General Industry set relates to the greatest number of people and workplaces.)
OSHA standards include requirements to provide protective clothing, prevent tunneling cave-ins, reduce exposure to some communicable diseases, guarantee the safety of workers entering confined spaces, prevent exposure to potentially harmful substances such as asbestos and lead, and install machine guards, among other things.
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If two current are in the same direction at any instant of time in a given branch of a circuit, the net current at that instant
Answers
If two currents are in the same direction at any instant of time in a given branch of a circuit, the net current at that instant will be the sum of the two individual currents. In other words, the net current is the algebraic sum of the two currents.
How can this be illustrated?For example, if one current is 2 amperes and the other current is 3 amperes, and they are flowing in the same direction in a given branch of the circuit, then the net current at that instant will be 5 amperes (2 + 3 = 5).
It's important to note that this only applies at a specific instant in time, and the net current may change as the circuit changes or the currents vary.
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What is one of the reasons to consider implementing a blockchain solution?
Answers
Blockchain is often used often in the verification and locating of multistep transactions. One of the reasons to consider implementing a blockchain solution is the ability to work on different versions of the same data.
Blockchain solution is known to keep transactions safe, limit compliance costs, and speed up data transfer processing. It is known to back up the accuracy of the data.In Blockchain, all node can see all transactions that are taking place in the system and all will get a copy of each of them to update its data and approve it.
See full question below
What is one of the reasons to consider implementing a blockchain solution?
Options:
1.inability to track simultaneous updates by multiple users
2. ability to work on different versions of the same data
3.ability to verify that data has not been tampered with since its creation
4.inability to trace and access data of other users
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An assembly of positive and negative plates and separators in electrolyte is called what?
Answers
Answer:
A battery
Explanation:
There are several words used to describe such an assembly:
pile, battery, electrolytic cell
A stall occurs when the smooth airflow over the unmanned airplane`s wing is disrupted, and the lift degenerates rapidly. This is caused when the wing
Answers
A stall happens when the smooth airflow over the unmanned airplane`s wing is disrupted, and the lift degenerates rapidly. This is caused when the wing "exceeds its critical angle of attack."
The angle of attack refers to the angle at which the airplane's wing meets the air that is flowing over it. When an airplane actually is taking off, it is lifting the nose up into the air. And, if that nose continues to rise ultimately it reaches a point where the air is not able to smoothly flow over the wing, causing the airplane to drop. And, this is the point when the airplane exceeds its critical angle of attack.
Exceeding the critical angle of attack is known to be a stall. This has no concern with the engine stalling, it just concerns with the wings not producing enough lift to keep the airplane in the air.
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which group of items produce cfc? question 5 options: aerosol sprays, refrigerants, aircraft halon car emissions, fire extinguishers, plywood insulation, car emissions, plywood foam, plywood, industrial processes
Answers
Refrigerants and fire extinguishers produce CFC (chlorofluorocarbons).CFCs (chlorofluorocarbons) are a group of synthetic, industrial chemicals that are commonly produced and used in a variety of applications, including refrigeration, air conditioning, and fire suppression.
The two main groups of items that produce CFCs are refrigerants and fire extinguishers. Refrigerants are used in air conditioners and refrigerators to transfer heat and provide cooling, while fire extinguishers contain CFCs as a propellant to help distribute the fire suppressant. It is important to note that CFCs have been phased out or restricted in many countries due to their adverse impact on the environment, including their contribution to ozone depletion and global warming. Alternatives to CFCs, such as hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs), have been developed and are now widely used as substitutes in many applications.
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Draw the circuit diagram for 3 cells connected in series, two resistors in series and a switch.
If V = I x R, calculate l if one cell = 2V and the resistor = 4Ω.
Answers
Answer:
See the image for solution
vertical gate in an irrigation canal holds back 12.2 m of water. Find the average force on the gate if its width is 3.60 m. Report your answer with proper units and 3 sig figs.
Answers
Answer:
The right solution is "2625 kN".
Explanation:
According to the question,
The average pressure will be:
= \(density\times g\times \frac{h}{2}\)
By putting values, we get
= \(1000\times 9.8\times \frac{12.2}{2}\)
= \(1000\times 9.8\times 6.1\)
= \(59780\)
hence,
The average force will be:
= \(Pressure\times Area\)
= \(59780\times 3.6\times 12.2\)
= \(2625537 \ N\)
Or,
= \(2625 \ kN\)
Create an array of 10 size and assign 10 random numbers. Now find the sum of the array using for and while loop.
Answers
Answer:
10
Explanation:
The Cisco IOS® command-line interface (CLI) offers context-sensitive help, a useful tool at any time during an EXEC session. You can type a question mark (?) to get help. Which two functions are provided to users by the context-sensitive help feature of the Cisco IOS CLI?
Answers
The context-sensitive help feature of the Cisco IOS CLI provides users with two functions, which are:
1. Command completion - this feature helps users complete a command by typing a partial command and then pressing the Tab key. The CLI will suggest possible command completions based on what the user has typed so far.
2. Command syntax help - this feature provides users with information about the syntax and usage of a particular command. Users can type a command followed by a question mark (?) to see the available options and syntax for that command. Functions are self-contained blocks of code that perform a specific task and can be reused throughout a program. They take input parameters, perform operations on those inputs, and then return a result. Functions can help to break up large programs into smaller, more manageable parts, and can improve code readability, maintainability, and reusability. They are a fundamental building block of most programming languages and are used extensively in software development to achieve a wide range of tasks.
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which of the following is true? a. a radial load is applied when the pressure from the load is perpendicular to the axis of the shaft, whereas an axial load is applied when the pressure from the load is parallel to the axis of the shaft. b. an axial load is applied when the pressure from the load is perpendicular to the axis of the shaft, whereas a radial load is applied when the pressure from the load is parallel to the axis of the shaft. c. both radial and axial loads are applied when the pressure from the load is perpendicular to the axis of the shaft. d. both radial and axial loads are applied when the pressure from the load is parallel to the axis of the shaft.
Answers
Option A holds the correct answer. Because the statement given in option A truly reflects the radial load and axial load.
When the load pressure is perpendicular to the axis of the shaft, a radial load is applied and when the load pressure is parallel to the axis of the shaft, an axial load is applied. In other words, the radial load is applied when the pressure from the load is 'perpendicular to the axis of the shaft'. In contrast, the axial load is applied when the pressure from the load is 'parallel to the axis of the shaft'.
However, the rest of the statements are not correct in the context of radial loads and axial loads.
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Using the correlation for the second virial coefficient (Pitzer correlation), find the molar volume of acetylene vapour at 247.1 K and 13.5 bar, giving your answer to the nearest cm3/mol. The critical temperature is 308.3 K and the critical pressure of acetylene is 61.39 bar. Take R = 8.314 J/mol-K and the acentric factor for acetylene is 0.187.
Answers
The molar volume of acetylene vapor at 247.1 K and 13.5 bar, using the Pitzer correlation for the second virial coefficient, is approximately 72.5 cm3/mol.
Explanation:
The Pitzer correlation can be used to estimate the second virial coefficient of a gas. The equation is given by B = (RTc)/(Pc) * (1 + m(1 - (T/Tc)^(0.5))) where B is the second virial coefficient, R is the ideal gas constant, Tc is the critical temperature, Pc is the critical pressure, T is the temperature, and m is the acentric factor.
Plugging in the given values and solving for B, we get B = -0.009413 m3/mol. Then, using the ideal gas law, V = RT/P, we can calculate the molar volume as V = (RT)/P = (8.314 J/mol-K * 247.1 K) / (13.5 bar * 10^5 Pa/bar) ≈ 0.0725 m3/mol ≈ 72.5 cm3/mol.
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An inverter has a balanced 3-phase, 277/480 V output and is installed a distance, d, ft from the point of utility connection. The DC/AC converter shown below in the inverter. And the distance d is the physical separation between this DC/AC converter and the PCC. (
Answers
An expression for the voltage drop between inverter and PUC
\(V D \rightarrow \frac{I(\Omega / k f t) d}{2770}$\)
This is further explained below.
What is an expression for the voltage drop between the inverter and PUC?Generally, the equation for Voltage drop is mathematically given as
\(V=\frac{I R}{V}\)
Therefore
\(\%$ Voltage drop $=\frac{I R}{V} * 100\\\\$\rightarrow \frac{100 I(\Omega / 15 f t) d}{1000 V_{p}}\\\\$V_{P}=277 \mathrm{~V}$\)
\(V D=\frac{I(\Omega / \mathrm{kft}) d}{10 * 2770} \rightarrow \frac{I(\Omega / \mathrm{kft}) d}{2770} \mathrm{~V}\\\\$\% V D \rightarrow \frac{I(\Omega / k f t) d}{2770}$\)
In conclusion, the expression for the voltage drop between inverter and PUC
\(V D \rightarrow \frac{I(\Omega / k f t) d}{2770}$\)
CQ
An inverter has a balanced 3-phase, 277/480 V output and is installed a distance, d, ft from the point of utility connection. The DC/AC converter is shown below in the inverter. And the distance d is the physical separation between this DC/AC converter and the PCC.
Derive an expression for the voltage drop between inverter and PUC in terms of d using the basic equation %VD =100IR/V.
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I need to solve for d
Answers
Answer:
it's not included
Explanation:
plz exact ur explain
Answer:
si amor
Explanation:
Hoiykñjdnlklbutrk
a load of 12tonnes is put along a horizontal plane by a force at 30°to and above the flat. if the coefficient of sliding friction is 0.2 find the frictional force
Answers
Answer:
20368.917N
Explanation:
Frictional force (F) is the product of the Coefficient of friction and the normal reaction.
F = μN
Coefficient of friction, μ = 0.2
Normal reaction = MgCosθ
Mass, m = 12 tonnes = 12 * 1000 = 12000 kg
N = 12000 * 9.8 * cos30
N = 101844.58
F = 0.2 * 101844.58
F = 20368.917N
A series circuit has 4 identical lamps. The potential difference of the energy source is 60V. The total resistance of the lamps is 20 Ω. Calculate the current through each lamp.
Answers
Answer:
\(I=3A\)
Explanation:
From the question we are told that:
Number of lamps \(N=4\)
Potential difference \(V=60v\)
Total Resistance of the lamp is \(R= 20ohms\)
Generally the equation for Current I is mathematically given by
\(I=\frac{V}{R}\)
\(I=\frac{60}{20}\)
\(I=3A\)
An open top concrete tank is available to a construction crew to store water. The job site has a daily requirement for 500 gallons. The tank is 20’ in diameter and is 12’ deep is this tank large enough to meet the needs of the construction site? Note: a gallon of water has a volume of 1.33 cu ft.
Answers
Explanation:
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