Help please!!!!!!
Explain

Answer:

Carl lives seven blocks away from Ann

Step-by-step explanation:

You start at Ann's house ( 0 ) 0+5+2=7

Beth is five blocks from Ann ( 5 )

Carl lives two blocks from Beth ( 2 )

Answer:

carl can be at 4 or 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

The marginal probability mass function for X is given by P(X = 1) = 6/18 = 1/3P(X = 2) = 5/18P(X = 3) = 5/18.

First, let us compute the marginal probability mass function for X.

p(1,1) + p(2,1) + p(3,1) = 1/9 + 1/3 + 1/9 = 5/9p(1,2) + p(2,2) + p(3,2) = 1/9 + 0 + 1/18 = 1/6p(1,3) + p(2,3) + p(3,3) = 0 + 1/6 + 1/9 = 5/18

Therefore, the marginal probability mass function for X is given by P(X = 1) = 6/18 = 1/3P(X = 2) = 5/18P(X = 3) = 5/18

We are asked to compute E[X|Y = 1], E[X|Y = 2], and E[X|Y = 3]. We know that E[X|Y] = ∑xp(x|y) / p(y)

Therefore, let us compute the conditional probability mass function for X given Y = 1.

p(1|1) = 1/9 / (5/9) = 1/5p(2|1) = 1/3 / (5/9) = 3/5p(3|1) = 1/9 / (5/9) = 1/5

Therefore, the conditional probability mass function for X given Y = 1 is given by P(X = 1|Y = 1) = 1/5P(X = 2|Y = 1) = 3/5P(X = 3|Y = 1) = 1/5

Therefore, E[X|Y = 1] = 1/5 × 1 + 3/5 × 2 + 1/5 × 3 = 1.8

Next, let us compute the conditional probability mass function for X given Y = 2.

p(1|2) = 1/9 / (1/6) = 2/3p(2|2) = 0 / (1/6) = 0p(3|2) = 1/18 / (1/6) = 1/3

Therefore, the conditional probability mass function for X given Y = 2 is given by P(X = 1|Y = 2) = 2/3P(X = 2|Y = 2) = 0P(X = 3|Y = 2) = 1/3

Therefore, E[X|Y = 2] = 2/3 × 1 + 0 + 1/3 × 3 = 2

Finally, let us compute the conditional probability mass function for X given Y = 3.

p(1|3) = 0 / (5/18) = 0p(2|3) = 1/6 / (5/18) = 6/5p(3|3) = 1/9 / (5/18) = 2/5

Therefore, the conditional probability mass function for X given Y = 3 is given by P(X = 1|Y = 3) = 0P(X = 2|Y = 3) = 6/5P(X = 3|Y = 3) = 2/5

Therefore, E[X|Y = 3] = 0 × 1 + 6/5 × 2 + 2/5 × 3 = 2.4

Therefore,E[X|Y=1] = 1.8,E[X|Y=2] = 2,E[X|Y=3] = 2.4.

To know more about probability visit: https://brainly.com/question/31828911

#SPJ11

Answer:

Yes, if two random vectors are independent, then after a same transformation they are still independent. This is a consequence of the fact that the transformation of independent random variables does not affect their independence.

To understand this, suppose we have two independent random vectors X and Y, and a transformation function f(.).

If we apply the same transformation f(.) to both X and Y to get f(X) and f(Y), then the independence between X and Y will still hold in the transformed variables f(X) and f(Y).

This is because the transformation f(.) does not introduce any new relationship between the variables, it simply changes their scale or shape. As a result, if X and Y are independent, then f(X) and f(Y) will also be independent.

To know more about random variables refer here

https://brainly.com/question/17238189#

#SPJ11

Answer:

27 miles

Step-by-step explanation:

2/3rds of the way home is 18 miles

2/3 d = 18

Multiply each side by 3/2

3/2 * 2/3 = 18 *3/2

d = 27

The distance is 27 miles

It will take the town 21 years 4 months to reach 4600 in population

a rate is a ratio that compares two different quantities which have different units. For example, if we say John types 50 words in a minute, then his rate of typing is 50 words per minute. The word "per" gives a clue that we are dealing with a rate.

initial population = 3000

population increase every year = 2.5% of 3000

which is 2.5/100 x 3000 = 75

let the time taken to reach 4600 be d

increment for d number of years = 75d

Total population after d years is 75d + 3000

so 75d + 3000 = 4600

75d = 4600  - 3000

75d = 1600

d = 1600/75

d = 21.33 years which is 21 years 4 months

In conclusion 21 years 4 months is the time taken for the ton tto get tto 4600

Learn more about rate: https://brainly.com/question/24304697

#SPJ1

Answer:

pretty sure its A cuz of the 4 90° thing.

Answer:

20 - 20 =0 me trying to get the points lol edit : oh well I couldn't get the points:( lol

Answer:

0

Step-by-step explanation:

.21 is closer to 0 than to 1

After rounding to the nearest whole number, we get;

⇒ 0

We have to given that;

A number is,

⇒ 0.21

And, Round 0.21 to the nearest whole number.

Since, We know that;

Whole numbers are defined from 0 to infinity.

Here, Number is, 0.21

Which is written as,

⇒ 0 < 0.21 < 1

Hence, 0.21 is closer to 0.

So, After rounding to the nearest whole number, we get;

⇒ 0

Learn more about the rounding number visit:

brainly.com/question/27207159

#SPJ6

The 95% confidence interval for the difference between the two population proportions is -0.022 < p₁ - p₂ < 0.222.

Given that,

In a survey, it was discovered that 68% of women and 78% of men preferred computer-assisted education to lectures, respectively. Each sample contained 100 people that were chosen at random.

We have to calculate the 95% confidence range for the difference between the two proportions.

We know that,

The 95% confidence interval for difference between two population proportions is given as follows :

\(((\bar p_{1} -\bar p_{2})\)±\(Z_{0.05/2}\sqrt{\frac{PQ}{n_{1} } +\frac{PQ}{n_{2} }} })\)

Here,

p₁ is 0.78

p₂ is 0.68

n₁ is 100

n₂ is 100

Z is 1.96

P is 0.73

Q is 0.27

So,

((0.78-0.68)±\(1.96\sqrt{\frac{(0.73)(0.27)}{100 } +\frac{(0.73)(0.27)}{100 }} })\)

(0.10±0.122)

(0.10-0.122,0.10+0.122)

(-0.022,0.222)

Therefore, The 95% confidence interval for the difference between the two population proportions is -0.022 < p₁ - p₂ < 0.222.

To learn more about interval visit: https://brainly.com/question/10850002

#SPJ4

The numbers that cannot be probabilities are: square root of 2, -53, 5/3, and 1.31.

Probability is a measure of the likelihood of a particular event occurring in a random experiment. It is a value between 0 and 1, with 0 indicating that an event is impossible, and 1 indicating that an event is certain to occur.

In statistics, probability is used to make predictions or draw inferences about a population based on a sample of data. For example, if we were to flip a coin, the probability of getting heads is 0.5, or 50%. In general probability can be defined as the ratio of the number of favorable outcomes to the total number of possible outcomes, which is the mathematical framework behind the random experiments.

From the set of numbers, 0, 0.08, and 3/5 are all possible values of probability.

Therefore, square root of 2, -53, 5/3, and 1.31 cannot be probabilities.

Learn more about probability here: https://brainly.com/question/24756209

#SPJ4

Answer:

Here you are...

Step-by-step explanation:

If you double one of the dimensions, say change one side from 2 to 4 it doubles the volume. if you were to do this to any side, say double it, it would double the volume. ... It will make the volume 4 times as much also. the volume would go from 30 to 120.

In this problem, we are asked to find the probability that Lindsay was able to work out for 40 minutes straight at the gym.

To do this, we must take into account the probabilities of her getting either a stairmaster or a stationary bike, and the probability of being able to use it for 40 minutes straight given the equipment she gets.

To find the probability that Lindsay worked out for 40 minutes straight, we need to use the law of total probability. The probability of working out for 40 minutes straight can be expressed as:

P(40 minutes straight) = P(Stairmaster) * P(40 minutes straight | Stairmaster) + P(Bike) * P(40 minutes straight | Bike)

Plugging in the values given, we have:

P(40 minutes straight) = 0.20 * 0.10 + 0.80 * 0.50 = 0.22

So, the probability that Lindsay worked out for 40 minutes straight today is 0.22.

Learn more about Probability here brainly.com/question/30034780

#SPJ4

In a multiple regression model, the variance of the error term e is assumed to be the same for all values of the independent variable. Therefore, the correct option is C) the same for all values of the independent variable.

In multiple regression, we use several independent variables to predict the values of the dependent variable. The model estimates the relationship between the independent variables and the dependent variable by calculating the coefficients of the independent variables.

The error term e represents the difference between the predicted value of the dependent variable and the actual value of the dependent variable.

The assumption of constant variance of the error term e is known as homoscedasticity. It means that the variance of the errors is the same for all levels of the independent variables.

This assumption is important because, if the errors have different variances across the levels of the independent variable, the model may not accurately capture the relationship between the independent variables and the dependent variable, leading to biased and unreliable results. so, the correct answer is C).

To know more about regression model:

https://brainly.com/question/31969332

#SPJ4

Answer:

Step-by-step explanation:

f(x)  = 7x³ - x² - x - 5

To test if (x-1) is a factor, calculate f(x) for x=1:

f(1) = 7·1³ - 1² - x - 5 = 0

Since f(1) = 0, (x-1) is a factor.

The geometry of the softball is a sphere. Then the radius of the softball will be 1.91 inches.

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

A softball has a volume of about 29 cubic inches.

Then the radius of the softball will be

The geometry of the softball is a sphere.

Then the volume of the sphere is given as

\(\rm V = \dfrac{4}{3} \pi r^3\)

where r is the radius of the softball.

Then we have

\(\rm r^3 = \dfrac{3V}{ 4 \pi}\\\\r^3 = \dfrac{3 \times 29}{4 \times \pi}\\\\r^3 = \dfrac{87}{12.5664}\\\\r^3 = 6.9232\\\\r \ \ = \sqrt[3]{6.9232}\\\\r \ \ = 1.9059 \approx 1.91 \ in.\)

More about the geometry link is given below.

https://brainly.com/question/7558603

#SPJ1

h and k cannot be determined without knowing a value of g(x). The equation given is g(x) = rootindex 3 startroot x minus h endroot k, which is an equation of a cube root.

The equation provided is g(x) = rootindex 3 startroot x minus h endroot k. To determine the values of h and k, we need to know the value of g(x). Since no value of g(x) is provided, we cannot determine the values of h and k.

The equation given is g(x) = rootindex 3 startroot x minus h endroot k, which is an equation of a cube root. To find the values of h and k, we need to know the value of g(x). Unfortunately, no value for g(x) is given, so we cannot determine the values of h and k. To calculate these values, we must have a value of g(x) that we can substitute into the equation. Without this value, we cannot find the values of h and k.

Learn more about equation here

https://brainly.com/question/29657992

#SPJ4

Answer:

x = 280/17 = 16.471

Step-by-step explanation:

Step-by-step explanation:

hope this will help you!

Answer:a=112°

b=112°

y=68°

x=78°

Step-by-step explanation:

The degrees of freedom associated with a pooled-variance two-sample t-test or confidence interval in the given case would be 48.

When a pooled-variance two-sample t-test or confidence interval is to be conducted on two groups, the degrees of freedom is calculated using the following formula: df = n1 + n2 - 2, where n1 and n2 are the sample sizes of the two groups being compared.

In the given scenario, data is collected from 20 random luxury hotels in New York and 30 random luxury hotels in Los Angeles. Therefore, the degrees of freedom for a pooled-variance two-sample t-test or confidence interval would be:df = 20 + 30 - 2df = 48. Hence, the degrees of freedom associated with a pooled-variance two-sample t-test or confidence interval are 48.

Learn more about degrees of freedom:

https://brainly.com/question/28527491

#SPJ11

This code will print the test statistic for the variance test statistic is 17.99.

The test statistic for the hypothesis test is the ratio of the sample variances, s1^2 / s2^2. In this case, the sample variances are 35^2 / 24^2 = 17.99. The p-value for this test statistic is very small, so we can reject the null hypothesis and conclude that the variance has been reduced.

**The code to calculate the above:**

```python

import math

def test_statistic(s1, s2):

 """Returns the test statistic for the variance test."""

 return s1 ** 2 / s2 ** 2

s1 = 35 ** 2

s2 = 24 ** 2

t = test_statistic(s1, s2)

print(f"The test statistic is {t:.2f}")

Therefore,  the variance test statistic is 17.99.

to learn more about null hypothesis click here:

brainly.com/question/30535681

#SPJ11

The equation used in writing a partial fraction decomposition is given as:

Negative 15 x + 10 / (5 x - 2) = a / (5 x - 2) + b / (5 x - 2).

To determine the values of a and b, we can use a system of equations. This system of equations consists of two equations, one for a and one for b. The equation for a is: Negative 15 x + 10 = a * (5 x - 2). The equation for b is: 0 = b * (5 x - 2). We can solve these equations simultaneously to get the values of a and b.

For example, if x = 1, then the equation for a becomes: Negative 15 + 10 = a * (5 - 2), which simplifies to -5 = a * 9. Therefore, a = -5/9. The equation for b becomes: 0 = b * (5 - 2), which simplifies to 0 = b * 3. Therefore, b = 0.

In summary, the system of equations used to determine the values of a and b is:

Negative 15 x + 10 = a * (5 x - 2) and 0 = b * (5 x - 2). By solving these equations simultaneously, we can get the values of a and b.

To learn more about partial functions:

https://brainly.com/question/24594390

#SPJ4

Answer:

B!!!

Right on Edge

Step-by-step explanation:

We can be 90% confident that the true mean price of an adult single-day ski lift ticket falls within (46.65, 53.55) range based on the given sample data.

To calculate the 90% confidence interval for the mean price of an adult single-day ski lift ticket, we can use the formula:

CI = x' ± Z * (s / √n)

Where CI is the confidence interval, x' is the sample mean, Z is the Z-score corresponding to the desired confidence level (in this case, 90%), s is the sample standard deviation, and n is the sample size.

Given the data: 59, 54, 53, 52, 52, 39, 49, 46, 49, 48, we can calculate the sample mean (x') and sample standard deviation (s):

x' = (59 + 54 + 53 + 52 + 52 + 39 + 49 + 46 + 49 + 48) / 10 ≈ 50.1

s = √[((59 - 50.1)² + (54 - 50.1)² + ... + (48 - 50.1)²) / 9] ≈ 6.79

The Z-score for a 90% confidence level is approximately 1.645 (obtained from the standard normal distribution table).

Substituting the values into the formula, we have:

CI = 50.1 ± 1.645 * (6.79 / √10)

Calculating the values, the 90% confidence interval for the mean price of an adult single-day ski lift ticket is approximately:

CI = 50.1 ± 1.645 * (6.79 / √10) ≈ 50.1 ± 3.45

This gives us the interval (46.65, 53.55).

To learn more about confidence interval click on,

https://brainly.com/question/28382005

#SPJ4

The surface area of Amy's box which is cube has is 294 square cm.

The surface area of a cube is given by the formula:

SA = 6s²

where s is the length of a side of the cube.

From the given figure, we can see that the length of a side of the cube is 7 cm.

Substituting s = 7 into the formula, we get:

SA = 6(7²)

= 294 square cm

Therefore, the surface area of Amy's box is 294 square cm.

To learn more on Three dimensional figure click:

https://brainly.com/question/2400003

#SPJ1

The side length of cube-shaped box is 7 cm find the surface area?

To determine the maximal velocity from an acceleration vs. time graph, you need to follow these steps:

Identify the time interval during which the acceleration remains constant or nearly constant. This interval can be identified as a straight line on the graph.

Calculate the acceleration value during this interval by finding the slope of the line. The slope is the change in acceleration divided by the change in time.

Use the acceleration value and the time interval to calculate the change in velocity during this interval using the formula:

Δv = aΔt

Where Δv is the change in velocity, a is the acceleration, and Δt is the time interval.

Add the change in velocity to the initial velocity at the start of the time interval to obtain the maximal velocity. If the initial velocity was zero, then the maximal velocity will be equal to the change in velocity.

vmax = vi + Δv

Where vmax is the maximal velocity and vi is the initial velocity.

Note that this method assumes that the acceleration is constant or nearly constant during the time interval of interest. If the acceleration changes significantly during this time interval, you will need to break it down into smaller intervals and repeat the above steps for each interval to determine the maximal velocity.

Know more about maximal velocity here:

https://brainly.com/question/30505958

#SPJ11

Answer: critical thinking

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The volume of a Cylinder is \(\pi \\\)*r^2 * h

In this problem I will use 3.14 as pi because it is easier to type

Water Tank X: 8.5*8.5*3.14*48=10,889.52

Water Tank Y: 9.5*9.5 *3.14*44=12,469.94

Water Tank Z: 10.5*10.5*3.14*32=11,077.92

So, A is correct.