The statement that ,"distribution of sample mean(μ) will be normally distributed if sample is obtained from population that is normally distributed, regardless of sample size(n)" is True .
What is Normal Distribution ?
A Normal Distribution is a distribution that describes a symmetrical plot of data around the mean value, where width of curve is defined by standard deviation.
the Central Limit Theorem states that , for a normally distributed random variable "X" , with mean "μ" and standard deviation "σ" , the sampling distribution of the sample means with size "n" can be approximated to a normal distribution with mean and standard deviation is s = σ/√n .
So , sample size restriction is only for non normal underlying distribution,
Therefore , by Central Limit Theorem the given statement is True .
The given question is incomplete , the complete question is
The distribution of the sample mean (μ), will be normally distributed if the sample is obtained from a population that is normally distributed, regardless of the sample size . Is the statement True or False ?
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What is the maximum number of pieces that a watermelon can be cut into with 10 cuts.
Watermelon can be divided into a maximum of 56 pieces using ten cuts.
A watermelon splits into two parts when you make a cut through it. Anywhere that a subsequent cut crosses an earlier cut, a new piece is formed. As a result, there are more pieces after each cut.
We need to take into account how the cuts cross to find the maximum number of pieces. Two pieces are produced by the first cut, two more are produced by the second cut intersecting those two pieces, and so on.
Figured out using a formula.
The formula given below is to calculate the greatest number of fragments from n cuts.
N=(n²+n+2)/2
In the formula, change n = 10 to represent ten cuts as follows
N=(10²+10+2)/2
N = (100+10+2)/2
N=112/2 N=56
A watermelon may only be divided into a maximum of 56 pieces with ten cuts.
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Will make BRAINLIEST
Please helppppppppppp
x being any number, specifically any real number between -2 and 6
-2<x</=6
i think!?
Find the domain and the range of the given relation.
{(-9,-7), (9,3), (0, -6), (-6,0)}
The domain is. (Use a comma to separate answers as needed.)
Answer:
Domain: -9, -6, 0, 9 I put them in ascending order
Range: -7, -6, 0, 3 I put them in ascending order.
Step-by-step explanation:
The domain is the inputs or the x values.
The range is the outputs or the y values.
Mark is deciding between two packages of cheddar cheese. Cheetah Chedda is $4.80 for 16 ounces. Moo Valley is $4.20 for 12 ounces. How much more does Moo Valley cost per ounce?
Answer:
$0.05
Step-by-step explanation: first, divided $4.80 and 16= $0.30. Then, divided $4.20 by 12= $0.35. And subtract your two answers
Moo Valley's cost per ounce is $0.05 per ounce more than the Cheetah Chedda cost of per ounce.
What is arithmetic?In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Cheetah Chedda cost per ounce = 4.80 / 16 = $0.3 per ounces
Moo Valley cost per ounce = 4.20 / 12 = $0.35 per ounces
Thus, Moo Valley's cost per ounce is $0.05 per ounce more than the Cheetah Chedda cost of per ounce.
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A quadratic and a curvilinear term are the same thing.
True
False
A curvilinear term in mathematics is "Consisting of, bounded by, or characterized by a curved line." However, the definition of a quadratic is a second-order polynomial equation in a single variable \(0= ax^{2}+bx+c\) with
\(a\neq 0\). A quadratic is a curvilinear term according to my definition, but a function like \($x^{4}$\) would also fit the definition of curvilinear. So, your answer is
False, a quadratic and a curvilinear term are not the same.
False, a curvilinear term is more broad, but quadratics have specific restrictions.
a researcher wishes to conduct a study of the color preferences of new car buyers. suppose that 60% of this population prefers the color green. if 15 buyers are randomly selected, what is the probability that at most a fifth of the buyers would prefer green? round your answer to four decimal places.
The probability that at most a fifth of the buyers would prefer green is approximately 0.0198
This problem can be solved by using the binomial distribution. Let X be the number of buyers out of 15 who prefer green. Then X follows a binomial distribution with parameters n = 15 and p = 0.6.
We want to find the probability that at most a fifth of the buyers would prefer green. This means we want to find P(X ≤ 3), since a fifth of 15 is 3.
Using the binomial probability formula, we have
P(X ≤ 3) = Σ P(X = k) for k = 0 to 3
= P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)
= (15 choose 0) (0.6)⁰ (0.4)¹⁵ + (15 choose 1) (0.6)¹(0.4)¹⁴ + (15 choose 2) (0.6)² (0.4)¹³ + (15 choose 3) (0.6)³ (0.4)¹²
= 0.0000265 + 0.000397 + 0.00312 + 0.0163
Add the number
= 0.0198
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Which of these numbers is irrational?
Answer:
\( \sqrt{5} \)
Step-by-step explanation:
decimal repeats without a pattern
Dan was thinking of a number. Dan doubles it and gets an answer of 34.7. What was the original number?
PLEASE HELP!!-What two rotations would provide the following images.
Suppose x and y are independent random variables such that E(X) = 6, Var(x) = 5, E(Y) = 4, Var(Y) = 10. Find E(U) where E(U) where U = 2x - y - 4 (the answer is an integer).
E(U) = 4, which is an integer.
What is Linearity of expectation?
Linearity of expectation is a fundamental property of expected value that states that the expected value of a sum or difference of random variables is equal to the sum or difference of their individual expected values.
To find E(U), where U = 2X - Y - 4, we can use the properties of expected value.
First, let's find the expected values of 2X, Y, and 4 separately using the linearity of expectation:
E(2X) = 2E(X) = 2 * 6 = 12
E(Y) = 4 (given)
E(4) = 4
Now, let's calculate the expected value of U:
E(U) = E(2X - Y - 4)
Since expected value is a linear operator, we can rearrange and simplify the expression:
E(U) = E(2X) - E(Y) - E(4)
= 12 - 4 - 4
= 4
Therefore, E(U) = 4, which is an integer.
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Amy invested $1500 in an account with an interest rate of 6.5%
What will the account balance be in 20 years if the interest is compounded monthly?
Step-by-step explanation:
p=1500
R=10%
t=20yrs
SI=PTR/100
=1500*10*20/100
=3000
amount(A)=P+I
=1500+3000
=4500
U(x
1
,x
2
)=x
1
α
x
2
1−α
,0<α<1
x
1
p
1
+x
2
p
2
=w
where x
1
and x
2
are consumption goods, p
1
and p
2
are the prices of those consumption goods respectively, α is a parameter, and w is the consumer's wealth. (i) [4 points] Find the partial derivative of U(x
1
,x
2
) with respect to x
1
and x
2
.
The partial derivative of the utility function \(U(x_1, x_2)\) with respect to \(x_1\) is \(a * x_1^{(a-1)} * x_2^{(1-a)}\), and the partial derivative with respect to \(x_2\) is \((1-a) * x_1^a * x_2^{(-a)}.\)
The utility function \(U(x_1, x_2)\) represents a consumer's satisfaction or preference for two consumption goods, \(x_1\) and \(x_2\). The partial derivatives provide insights into how the utility function changes as we vary the quantities of the goods.
To calculate the partial derivative with respect to \(x_1\), we differentiate the utility function with respect to \(x_1\) while treating \(x_2\) as a constant. The result is \(a * x_1^{(a-1)} * x_2^{(1-a)}\). This derivative captures the impact of changes in \(x_1\) on the overall utility, taking into account the relative importance of \(x_1\)(determined by the parameter a) and the quantity of \(x_2\).
Similarly, to find the partial derivative with respect to \(x_2\), we differentiate the utility function with respect to \(x_2\) while treating \(x_1\)as a constant. The resulting derivative is \((1-a) * x_1^a * x_2^{(-a)}.\). This derivative shows how changes in \(x_2\) affect the overall utility, considering the relative weight of \(x_2\) (given by 1-a) and the quantity of \(x_1\).
In summary, the partial derivatives provide information about the sensitivity of the utility function to changes in the quantities of the consumption goods, allowing us to understand the consumer's preferences and decision-making.
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Please help me with letter e
Height of the triangle is = 14m
Given,
Base of the triangle is 8m
Area of the triangle is = 56m^2
To find the height of the triangle.
Now, According to the question:
We know that
Area of the triangle is = 1/2 x b x h
where, b = base
h = height
Plug all the values of base and area in above formula:
56m^2 = 1/2 x 8m x h
56 x 2 / 8 = h
h = 14m
Hence, Height of the triangle is = 14m
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What is the probability that either event will occur?
Now, find the probability of event A and event B.
A
B
6
6
20
20
P(A and B) = [?]
The probability of event A and event B is 6.
Given that, P(A)=6, P(B)=20 and P(A∩B)=6.
P(A/B) Formula is given as, P(A/B) = P(A∩B) / P(B), where, P(A) is probability of event A happening, P(B) is the probability of event B.
P(A/B) = P(A∩B) / P(B) = 6/20 = 3/10
We know that, P(A and B)=P(A/B)×P(B)
= 3/10 × 20
= 3×2
= 6
Therefore, the probability of event A and event B is 6.
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suppose you want to estimate the proportion of students at a large university that approve of the new health care bill. you take an srs of 200 of the 25,000 undergraduate students and an srs of 100 of the 5,000 graduate students.
According to the question, srs is a simple random sample whose size consists of individuals from the population and chosen in such a way that every set of individuals has an equal chance to be sampled.
What is Stratified random samples?
For stratified random samples, initially classify the population into the groups of similar individuals which is called as “strata”. Later choose simple random samples and combine them to form a full sample.
As per question, srs of \(200\) of the \(25000\) undergraduate students and the srs of \(100\) of the \(500\) graduate students. This overall sample is a stratified sample.
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How many solutions are there to the equation below?
14x + 5 = 14x-19
A. 1
B. infinitely many
C. 0
Answer:
0
Step-by-step explanation:
the slope is the same and the intercepts are different
find the quotient 4 4/5 divided by 4/5
Answer:
Step-by-step explanation:
6
An x-method chart shows the product a c at the top of x and b at the bottom of x. Above the chart is the expression a x squared + b x + c. If x – 10 is a factor of x2 – 8x – 20, what is the other factor? x +
Answer:
The other factor is (x + 2).
Step-by-step explanation:
If x - 10 is a factor of x^2 - 8x - 20 then we must find another factor that includes +2x, so that we have -10x + 2x = -8x. That factor is (x + 2):
x^2 - 8x - 20 = (x - 10)(x + 2)
As a test, multiply -10 and +2. We get -20, matching the constant of the given polynomial. Also, -10x + 2x = -8x, another match.
Answer:
(x-12) and (x+12)
Step-by-step explanation:
which would best display the following data if you wanted to display the numbers which are outliers as well as the mean
A stem and leaf plot would best display the following data if you wanted to display the numbers which are outliers as well as the mean. Option C is the correct option.
A stem and leaf plot would be the best choice for displaying the given data if the goal is to show outliers as well as the mean. A stem and leaf plot is a simple and effective way to represent the data distribution while preserving the individual data points.
It organizes the data by separating the leading digit (stem) and the trailing digit (leaf). This plot allows for easy identification of outliers as they would be displayed separately from the main distribution. Additionally, the stem and leaf plot can include a line indicating the mean, providing a visual representation of its position relative to the data points.
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The question is -
Which would best display the following data if you wanted to display the numbers which are outliers as well as the mean?
[4, 1, 3, 10, 18, 12, 9, 4, 15, 16, 32]
A. Pie chart.
B. Bar graph.
C. Stem and leaf plot.
D. Venn diagram.
help pleaaase
The lengths (in feet) of two sides of a regular quadrilateral are represented by the
expressions 8x 6 and 4x 22. Find the length of a side of the quadrilateral.
Answer:
The lengths ( in feet ) of two sides of a regular quadrilateral are represented by th expresion
8x-6 and 4x+22 . find the length of a side of the quadrilateral
Answer by Alan3354(67447) (Show Source): You can put this solution on YOUR website!
A regular quadrilateral is a square, so
8x-6 = 4x + 22
Can you finish it?
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The length of a side of the quadrilateral is 38 feet.
Given that, The lengths (in feet) of two sides of a regular quadrilateral are represented by the expressions 8x + 6 and 4x + 22.
We need to find the length of a side of the quadrilateral.
What is the regular quadrilateral?The regular quadrilateral is a 4-sided polygon which is equiangular and equilateral. Square is a quadrilateral with all the sides equal and all angles equal to 90°. Hence, the square is a regular quadrilateral.
Now, 8x+6=4x+22
⇒8x-4x=22-6
⇒4x=16
⇒x=4
Then, 8x+6=38 feet and 4x+22=38 feet
Therefore, the length of a side of the quadrilateral is 38 feet.
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a hemisphere with diameter 5cm Calculate the volume of this hemisphere
Answer:
v= 262 (3 significant figures)
Step-by-step explanation:
volume of hemisphere= 2/3 * π * r³
v= 2/3 * 22/7* 125
v= 261.799388cm3
v= 262 (3 sf)
Which of the following describes the correct process for solving the equation 2x - 6 = 22 and
arrives at the correct solution?
A. Subtract 6 from both sides of the equation and then divide by 2. The solution is x = 7.
B. Add 6 to both sides of the equation and then divide by 2. The solution is x = 14.
C. Add 6 to both sides of the equation and then divide by 22. The solution is x = -14.
D. Divide both sides by -6 and then add 2. The solution is x = 8.
Answer:
The correct solution is B
Step-by-step explanation:
2x - 6 = 22
2x = 28
x = 14
hi
Correct answer is B
2X-6 =22
2X-6 +6 = 22 +6
2X =28
2X/2 = 28/2
X=14
A high definition radio station charges $200 membership fee for one year in addition to $50 per month for the first 6 months to receive its broadcast. The total cost for the services is determined by the number of months
Answer:
300.00$
50$ per month
6 months
50x6
Quetlon 21 of 28Which of the following represents the ratio of the hypotenuse to the short legfor the triangle shown below?30°60°A. 2:1B. 1: 5C. 3:1D. 1:2
In order to determine the ratio of the hypotenuse to the short leg, use the sine of angle 30°:
sin 30° = opposite side / hypotenuse
Take intop account that sin30° is jsut the same the required ratio.
Moreover, consider that sin 30° = 1/2, which is the same that:
opposite side / hypotenuse = 1/2
or
hypotenuse / opposite
When Liz woke up in the morning, it was 6°F. By the late afternoon, the temperature had dropped 9°F.
The temperature in the late afternoon is -3°F.
According to the question,
We have the following information:
When Liz woke up in the morning, it was 6°F. By the late afternoon, the temperature had dropped 9°F.
Now, we can easily find the temperature in late afternoon.
To find this, we will have to subtract 9 from 6 because the temperature has dropped from 6.
(Please note that the temperature given here is in ° F. However, it is to be noted that the two most commonly used units of temperature are °F and °C.)
So, we have the following expression:
6-9
-3°F
Hence, the temperature in the late afternoon is -3°F.
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what is 72 divided by 2 plus 80 equal?
Answer:
116
Step-by-step explanation:
Which representation has the same rate of change of y with respect to x as the equation x 2y = 6?
The slope of all the given options are equal and it is equal to slope of given equation .
What is slope?
A line's steepness and direction are measured by the line's slope. Without actually using a compass, determining the slope of lines in a coordinate plane can assist in forecasting whether the lines are parallel, perpendicular, or none at all.
Any two different points on a line may be used to compute the slope of any line. The ratio of "vertical change" to "horizontal change" between two different locations on a line is calculated using the slope of a line formula. We shall comprehend the slope-finding method and its applications in this essay.
Given
Equation of a given line is x+2 y=6
Lets find out slope m by writing the equation in \($y= \mathbf{m}+\mathbf{b}$\) form
\($$\begin{aligned}& x+2 y=6 \\& 2 y=-x+6 \\& y=\frac{-1}{2} x+6\end{aligned}$$\)
The slope of the line is \($\frac{-1}{2}$\)
Now we find slope of each option using formula \($m=\frac{y_2-y_1}{x_2-x_1}$\)
Lets pick two points from the graph to find out slope
Pick (0,3) and (6,0)
\($$\begin{aligned}& m=\frac{y_2-y_1}{x_2-x_1} \\& m=\frac{0-3}{6-0}=\frac{-1}{2}\end{aligned}$$\)
Now pick two points from option \($\mathbf{B}$\) to find slope
(-10,-3) and (0,-8)
\(m=\frac{-8+3}{0+10}=\frac{-1}{2}$$\)
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i. How does a person's cycling rate show up in his or her equation?
A person's cycling rate can be expressed mathematically in the equation that describes their cycling motion. Specifically, the cycling rate can be represented by the frequency or number of revolutions per unit time (usually in seconds) that the person completes while cycling.
The equation that describes a person's cycling motion is typically a kinematic equation that relates the person's position, velocity, and acceleration as a function of time. One commonly used equation is:
d = vit + 1/2at^2
where d is the distance traveled by the person, vi is the initial velocity (usually zero), a is the acceleration, and t is the time elapsed.
The cycling rate can be incorporated into this equation by expressing the velocity as a function of the frequency of revolutions (f) and the radius of the wheel (r). This gives:
v = 2πrf
where v is the velocity of the cyclist, r is the radius of the wheel, and π is the mathematical constant pi (approximately 3.14).
Substituting this expression for v into the kinematic equation gives:
d = (2πrf)t + 1/2at^2
This equation shows how the person's cycling rate, represented by the frequency f, affects their distance traveled as a function of time. If the person increases their cycling rate, their velocity increases, and they will travel a greater distance in the same amount of time.
5.) In 2012 the cost of a ticket to an arts
festival was $30.This was 20% more
than the ticket cost in 2011.
Calculate the cost of the ticket in 2011.
9514 1404 393
Answer:
$25
Step-by-step explanation:
If c is the 2011 cost, then we are told ...
30 = c + 20%×c
30 = 1.2c . . . . . . simplify
30/1.2 = c = 25 . . . . . divide by the coefficient of c
The 2011 cost was $25.
Please helppp. Can you explain this?
Answer:
We have to find the value of x.
We need to substitute with 3 because they measure the same.
Step-by-step explanation:
(x - 1)
x - 1 = 3
x - 1 + 1 = 3 + 1
x = 4
(x + 1)
x + 1 = 5
x + 1 - 1 = 5 - 1
x = 4
Both answers are the same which means that they are correct.