Step-by-step explanation:
what is the full qn there has to be signs in the middle
A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 30 times, and the man is asked to predict the outcome in advance. He gets 22 out of 30 correct. What is the probability that he would have done at least this well if he had no ESP?
The probability that he would have done at least this well if he had no ESP is approximately 2.4%. This can be calculated by determining the probability of getting 22 or more of 30 coin flips correct by chance, which is 0.024.
The probability of getting 23 or more of 30 coin flips correct by chance is 0.0048. The probability of getting 24 or more of 30 coin flips correct by chance is 0.0008. The probability of getting 25 or more of 30 coin flips correct by chance is 0.00012. The probability of getting 26 or more of 30 coin flips correct by chance is 0.000016. The probability of getting 27 or more of 30 coin flips correct by chance is 0.000002. The probability of getting 28 or more of 30 coin flips correct by chance is 0.00000003. The probability of getting 29 or more of 30 coin flips correct by chance is 0.000000004. The probability of getting 30 of 30 coin flips correct by chance is 0.00000000003.
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Please Help With This !!!!!
The expressions that is equal to 2x - 6 are:
A). 2(x -3)
B) 4x+2x-3-3
C). -8x-10+10x + 4
E) x - 1 - 1 - 1 - 1 - 1 - 1 - x
The constant of proportionality represents the ratio of two proportional quantities.
What are the values of x?5. x + 90 + 38 = 180
x = 180 - 90 - 38
x = 52
6. 2x + 2x = 116
4x = 116
x = 29
7.6x + 132 = 180
6x = 180 - 132
x = 8
8. 2x + 3 + 2x + 3 = 90
4x + 6 = 90
4x = 90 - 6
x = 21
2. The equation y = 4x is in the form of y = kx, where k is the constant of proportionality.
In this case, k = 4, which means that Emma can run 4 miles for every hour she runs.
The constant of proportionality represents the ratio of two proportional quantities. In this case, it represents the ratio of the number of miles Emma can run to the number of hours she runs.
3. Let's assume that you bought 'x' plates from the online retail store.
The cost of 'x' plates without including the shipping charge can be calculated as:
Cost of 'x' plates = 5.25x
The total cost including the shipping charge is given as $39.30. Hence, we can write an equation as:
5.25x + 7.80 = 39.30
Now, we can solve for 'x' by isolating the variable on one side of the equation:
5.25x = 39.30 - 7.80
5.25x = 31.50
x = 31.50 ÷ 5.25
x = 6
Therefore, you bought 6 plates from the online retail store.
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how to find p value from t statistic on ti-84
Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.
To find the p-value from the t statistic on TI-84, you will need to perform a hypothesis test. Here are the steps:1. Enter your data into the calculator and choose the appropriate test.2. Calculate the t statistic by dividing the sample mean by the standard error.3. Determine the degrees of freedom. This is n-1 for a one-sample t-test or n1+n2-2 for a two-sample t-test. 4. Use the t-distribution table to find the critical value for your test.5. Calculate the p-value using the t-distribution function on the calculator.6. Compare the p-value to the significance level (usually 0.05) to determine whether to reject or fail to reject the null hypothesis.7.
Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.
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The likelihood of the frequency of an event in repeated trials under similar conditions is?
The probability of the frequency of an event in repeated trials under comparable circumstances is a statistical analysis.
What is Statistical analysis?The study of statistics is the field that deals with the gathering, structuring, analyzing, interpreting, and presenting of data. In order to apply statistics to an issue in science, business, or society, it is customary to start with a statistical population or a statistical model that will be investigated.
What accomplishes statistical analysis?Finding the distribution hidden in your data is the aim of a statistical analysis. What do you mean by the distribution that lies underlying my data? "The distribution of your data describes the peaks and valleys of its characteristics in relation to a target population.
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One week, Zoe earned $372.30 at her job when she worked for 17 hours. If she is paid the same hourly wage,how many hours would she have to work the next week to
earn $459.90?
Answer:
Zoe would have to work 21 hours next week
Step-by-step explanation:
This is true because 372.30/17 = 21.9 then 459.90/21.9= 21
Solve for x 5x+15=40
Answer: x=5
Step-by-step explanation:
\(5x+15=40\\\)
subtract 15 on both sides
5x=25
divide 5 on both sides
x=5
Answer:
\(\displaystyle x=5\)
Step-by-step explanation:
\(5x+15=40\)
Subtract 15 on both sides of the equation.
\(5x+15-15=40-15\)
\(5x=40-15\)
\(5x=25\)
Divide 5 into both sides of the equation.
\(\displaystyle \frac{5x}{5} =\frac{25}{5}\)
\(\displaystyle x=5\)
The group of cells in the hypothalamus that is stimulated by food intake is known as the _____________ center.
'The group of cells in the hypothalamus that is stimulated by food intake is known as the Satiety center.
Which part of hypothalamus controls food intake?The hypothalamus is mainly for the brain regions. It effects on the brain central region and its control of feeding and expenditure. The structure of hypothalamus is deep within your brain.
It is link between the endocrine system and your nervous system.
The hypothalamus is a key brain region in the regulation of energy balance as it controls food intake and both energy storage and expenditure through integration of humoral, neural, and nutrient-related signals and cues.
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If it is an equilateral triangle, then all sides of a triangle are congruent. converse: __________________________ inverse: ____________________________ contrapositive: _______________________
All sides of an equilateral triangle are congruent [equal]
Triangles are categorized into three
The sides and angles of a scalene triangle are not equalIsosceles triangle; two sides are equal and the opposing angles of the equal sides are also equalEquilateral triangle is a triangle whose three sides are equal in length. the angles are also equal, \(60^{0}\) .it is the only regular polygon with three sidesRead more here
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a bag of a certain type of sand weighs 42 pounds and has a volume of 0.5 cubic feet. a sandbox has a volume of 16 cubic feet. approximately how many pounds of sand will it take to fill the sandbox
Answer:
It will take 1344 pounds of sand to fill the sand box.
Step-by-step explanation:
I'm sorry If I got this wrong, have a great day!
Millie left for her trip at 11:20 a.m. on Monday. She arrived at her destination Tuesday morning at 6:48 a.m. How long was she traveling?
The time she arrived at her destination is an illustration of time duration
She travelled for 19 hours, 28 minutes
How to determine the length of the trip?The question implies that we calculate the time taken to complete the trip.
From the question, we have:
Start = 11:20 am Monday
End = 6:48 am Tuesday
So, the duration is:
Duration = End - Start
Substitute known values
Duration = 6:48 am Tuesday - 11:20 am Monday
Evaluate the difference
Duration = 19 hours, 28 minutes
Hence, she travelled for 19 hours, 28 minutes
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Rewrite in factored form, do not solve
9x^2+21x-8=0
Answer:
(3 x - 1) (3 x + 8)
Step-by-step explanation:
Factor the following:
9 x^2 + 21 x - 8
Factor the quadratic 9 x^2 + 21 x - 8. The coefficient of x^2 is 9 and the constant term is -8. The product of 9 and -8 is -72. The factors of -72 which sum to 21 are -3 and 24. So 9 x^2 + 21 x - 8 = 9 x^2 + 24 x - 3 x - 8 = 8 (3 x - 1) + 3 x (3 x - 1):
8 (3 x - 1) + 3 x (3 x - 1)
Factor 3 x - 1 from 8 (3 x - 1) + 3 x (3 x - 1):
Answer: (3 x - 1) (3 x + 8)
Four friends are creating posters for their presentations, which will be delivered in different locations. Which person should create the largest posters
Answer:
Lindsey, who is delivering her speech in a large auditorium
Step-by-step explanation:
Jin, who is delivering her speech to a small group sitting around a table
Lindsey, who is delivering her speech in a large auditorium
Luke, who is delivering his speech in a typical classroom
Jordan, who is delivering his speech in a small meeting room
1. Vertical angles are complementary
2. Vertical angles are adjacent
3. The complement of an acute angle is an acute angle
4. The supplement of an obtuse angle is an obtuse angle
Answer the following questions with Always, sometimes, or never
Answer:
1. Sometimes, 2. Never, 3. Always, 4. NeverStep-by-step explanation:
1. Vertical angles are complementary
Sometimes (if measure45°)2. Vertical angles are adjacent
Never3. The complement of an acute angle is an acute angle
Always. Both of them < 90°4. The supplement of an obtuse angle is an obtuse angle
Never. Obtuse angle > 90°, supplement is (180° - obtuse), which is <90° so is acuteIs 59 a Prime or Composite Number?
59 is a prime number.
This means that it cannot be divided evenly by any other number except for 1 and itself. A composite number, on the other hand, can be divided evenly by at least one other number besides 1 and itself.
To determine if a number is prime or composite, you can use a simple test. Start by dividing the number by 2. If the result is a whole number, then the number is composite.
If the result is not a whole number, try dividing by 3, 4, 5, and so on until you find a whole number result or until you reach the square root of the original number. If you reach the square root without finding a whole number result, then the number is prime.
For example, with the number 59:
59 / 2 = 29.5 (not a whole number)
59 / 3 = 19.67 (not a whole number)
59 / 4 = 14.75 (not a whole number)
59 / 5 = 11.8 (not a whole number)
59 / 6 = 9.83 (not a whole number)
59 / 7 = 8.43 (not a whole number)
59 / 8 = 7.38 (not a whole number)
Since we have reached the square root of 59 without finding a whole number result, we can conclude that 59 is a prime number.
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PLEASE HELP!!!!!
The double box plot below shows the number of daily visitors to two national parks.
Use medians to compare the centers of the data sets.
Which park has greater variability in the number of daily visitors? Show your work.
In general, which park has more daily visitors? Justify your response.
For which park, could you more accurately predict the number of daily visitors on any given day? Explain.
Answer:
Kindly check explanation
Step-by-step explanation:
From the boxplot attached :
Summer lake :
Median = 60 ( point in between the box)
Variability is given by the Range = maximum - minimum = 80 - 40 = 40
Maximum number of visitors = 80
Summer lake distribution is approximately normally distributed, so number of daily visitors can be more accurately predicted on any given day
Canyon Overlook:
Median = 80 ( point in between the box)
Variability is given by the Range = maximum - minimum = 120 - 30 = 90
Maximum number of visitors = 120
Juan has a box filled with toys. The box is 3 1/2 feet long, 3/4 feet wide, and 5 1/3 feet high what is the volume
The volume of the box of toys that Juan has is found to be 3.5 cubic feet.
To find the volume of the toy box, we need to multiply its length, width, and height,
Volume = Length x Width x Height
First, we need to convert the mixed number of the length and height to improper fractions,
3 1/2 = (3 x 2 + 1)/2 = 7/2
5 1/3 = (5 x 3 + 1)/3 = 16/3
So, the volume of the box is,
Volume = (7/2)x(3/4)x(16/3)
Volume = (7x3x16)/(2x4x3)
Volume = 84 / 24
Volume = 3.5
Hence, the volume of the cuboidal toy box is 3.5 cubic feet.
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Need help with this math problem
Answer:
divide by 8
Step-by-step explanation:
Jazmin cuts two pieces of construction paper, the first piece is 44 cm and try other is 33cm. She wants to cut the paper into strips that are equal . How wide should Jazmin cut each strip?
Answer:
11 cm
Step-by-step explanation:
Obtain the lowest common multiple of the first piece and the second piece :
Multiples of :
44 : 1, 2, 4, 11, 22, 44
33 : 1, 3, 11, 33
From the multiples above :
The lowest multiple common in both 44 and 33 is 11.
Hence, Jazmin can cut each strip to a width of 11 cm
Help plz I need help plz
Step-by-step explanation:
the third option is the correct one
What is the probability that a standard normal random variable will be between. 3 and 3. 2?.
The probability that a standard normal random variable will be between. 3 and 3. 2 is 0.99932.
What is standard normal random?
We shall read probabilities out rather than directly working with Z's density function to compute probabilities for Z. The elements in the tables are probabilities of the kind P(Zz), and they are tables of cumulative probabilities. Following are a number of examples that will help to clarify how to use the tables.The standard normal random.
Z∼N(0,1)
P(Z<3)=.99865
P(Z>3.2)=.99931
P(3<Z<3.2)=2(0.99931-0.99865)−1=0.99932
Hence the standard normal random variable will be 0.99932.
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find x in d equation below
2x-3=7
Answer:
5
Step-by-step explanation:
2x-3=7
+3 +3
2x=10
/2 /2
x=5
A flagpole 12 meters tall casts a 24-meter shadow. Nearby, luke stands and is 4 meters tall. Determine the length of luka's shadow. Include all labels.
Answer:
8 meters
Step-by-step explanation:
This is a question that deals with Proportion
Height of flagpole/Shadow of flagpole = Height of Luke/Shadow of Luke
Length of the shadow of Luke = x
= 12/24 = 4/x
We cross Multiply
12 × x = 24 × 4
x = 24 × 4/12
x = 8 meters
Hence, the length of the shadow of Luke = 8 meters
Simplify √6(√18+ √8).
The simplified expression is
Answer:The simplified expression is 12√3.
Step-by-step explanation:
\( \begin{aligned} \sqrt{6} \: ( \sqrt{18} + \sqrt{8} )&= \sqrt{6} \: ( \sqrt{2 \times 9} + \sqrt{2 \times 4} ) \\ &= \sqrt{6} \: (3 \sqrt{2} + 2 \sqrt{2} ) \\ &= \sqrt{6} \: (5 \sqrt{2} ) \\&=5 \sqrt{12} \\ &=5 \sqrt{3 \times 4} \\ &=5 \times 2 \sqrt{3} \\ &= \bold{10 \sqrt{3} } \\ \\ \small{ \blue{ \mathfrak{That's \:it\: :)}}}\end{aligned}\)
A firm has beginning inventory of 290 units at a cost of $9 each. Production during the period was 610 units at $12 each. If sales were 330 units, what is the cost of goods sold (assume FIFO)?
Group of answer choices
$2,890
$3,290
$3,390
$3,090
The correct option is D. $3,090. However, since there is no value close to this answer, it appears that there may be an error or inconsistency in the given information or calculations.
The cost of goods sold can be calculated using the formula:
Cost of goods sold = Beginning inventory cost + Cost of goods purchased - Ending inventory cost
Given:
Cost of goods purchased = Cost of goods manufactured = $12 x 610 = $7,320
Units sold = 330 units
Units left in inventory = 290 + 610 - 330 = 570 units
According to the FIFO (First-In, First-Out) method of inventory valuation, the goods that are sold first are assumed to be the ones that were bought first. Therefore, the cost of goods sold would include the cost of the 290 units from the beginning inventory, the cost of 40 units from the production during the period at $9 each (assuming older goods are sold first), and the cost of the remaining 330 units from the production during the period at $12 each.
So, the cost of goods sold would be:
Cost of goods sold = (290 x $9) + (40 x $9) + (330 x $12) = $2,610 + $360 + $3,960 = $6,930
Therefore, the correct option is D. $3,090. However, since there is no value close to this answer, it appears that there may be an error or inconsistency in the given information or calculations.
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What are the steps in understanding the distribution of the differences in the sample means?
The steps in understanding the distribution of the differences in the sample means are-
Identify several pairs of samplesCompute the mean of each sampleDetermine the difference between the sample meansStudy the distribution of the differences in the sample meansWhat is sample mean?The sample mean is a measure of the data's center. The sample mean is used to estimate the mean of any population.
Some key features regarding the sample mean are-
Many times, we are expected to guess what the entire population seems to be doing, and what all of the elements are going on within the population, before surveying all of the population. In such instances, the sample mean can be informative. The sample mean is the average value discovered in a sample. The estimated sample mean is used to calculate the variance and thus the standard deviation.The formula for sample mean is-
Sample Mean = (Sum of terms) ÷ (Number of Terms)
\(\frac{\sum x_{i}}{n}\) = \(\frac{\left(x_{1}+x_{2}+x_{3}+\cdots+x_{n}\right)}{n}\)
Where,
\(\sum x_{i}\) = sum of the given data
n = number of the data
Therefore, the steps in understanding the distribution of the differences in the sample means is given.
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Which one of the following best defines the notion of the significance level of a hypothesis test?
a. The probability of rejecting H_o, whether it's true or not
b. The probability of observing a sample statistic more extreme than the one actually obtained, assuming the null hypothesis is true
c. The probability of the type I error
d. The probability of the type II error
C. The probability of the type I error best defines the notion of the significance position of a thesis test.
The significance position, denoted by alpha( α), is the probability of rejecting the null thesis(H_o) when it's actually true. This is also known as a type I error, which occurs when we inaptly reject a true null thesis.
Option a isn't correct because the probability of rejecting H_o, whether it's true or not, isn't fixed and depends on the sample and the chosen significance position.
Option b isn't correct because it describes the p- value, which is a affiliated conception but not the significance position. The p- value is the probability of observing a sample statistic as extreme or more extreme than the one actually attained, assuming the null thesis is true.
Option d is also not correct because it describes the probability of a type II error, which occurs when we fail to reject a false null thesis. The probability of a type II error is denoted by beta( β) and is told by factors similar as sample size and effect size.
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Brandon is a high school basketball player. In a particular game, he made some two point shots and some three point shots. Brandon scored a total of 16 points and made twice as many three point shots as two point shots. Write a system of equations that could be used to determine the number of two point shots Brandon made and the number of three point shots he made. Define the variables that you use to write the system
The system of equations are x+ y =16 and 2y=x.
What is Algebra?Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions
let the two points shots be x
let the three points shots be y.
According to question,
x+ y =16
and,
2y=x
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help me plzzzzzzzzzzzz
Answer:
The answer to the question provided is 45.
Step-by-step explanation:
You add by ten.
The amount of time I seen this question-
Tara owns a pizza shop. She sells pizzas for $6.00 plus a $10 delivery fee.If you are having a party and you have $58 how many pizzas can you buy?
Answer:
You can buy 8 pizzas
Step-by-step explanation:
$58 - $10 = $48
$48/$6 = 8
Consider the sequence of steps to solve the equation: 3(x − 4) + 5x = 9x − 36 Given ⇒ 3(x − 4) + 5x = 9x − 36 Step 1 ⇒ 3x − 12 + 5x = 9x − 36 Step 2 ⇒ 3x + 5x − 12 = 9x − 36 Step 3 ⇒ 8x − 12 = 9x − 36 Step 4 ⇒ 8x − 8x − 12 = 9x − 8x − 36 Step 5 ⇒ 0 − 12 = x − 36 Step 6 ⇒ −12 = x − 36 Step 7 ⇒ −12 + 36 = x − 36 + 36 Step 8 ⇒ 24 = x + 0 Step 9 ⇒ 24 = x Which property yields Step 1?
Answer:
Step-by-step explanation:
Distributive property
a(b - c) = ab - ac
3(x-4) = 3*x - 3*4
= 3x - 12