Math Answers

6. A shipment of five computers contain two that are slightly defective. If a retailer receives three of these computers. How many random variables X representing the number of slightly defective computers? a. 1 b. 2 c. 3 d. 4

Consider the population consisting of 1, 2, 3, 5, 6, and 7. Suppose samples of size 4 are drawn from this population. Describe the sampling distribution of the sample means. Compute for the mean and the variance of the sampling distribution of the sample means. Be guided by the first illustration.

STEPSSOLUTION1. Compute the mean of the population.2. Compute the variance of the population.3. Determine the number of possible samples of size n = 44. List all possible samples and compute their corresponding means.5. Construct the sampling distribution of the sample means.6. Compute the mean of the sampling distribution of the sample mean.7. Compute the variance of the sampling distribution of the sample means.

Suppose three coins are tossed. Let Y be the random variable representing the number of heads that occur. Find the probability of each of the values of the random variable Y completele the table below

Two balls are drawn in succession without replacement from an urn containing 5 red balls and 6 blue balls. Let Z be the random variable representing the number of Blue balls. Find the values of the random variable Z

Four coins are tossed.Let Z be the random variable representing of heads that occur.Construct a table and find the values of random variable Z.

1.Determine the sample space.Let represent the tail and it represent the head.

2.Count the number of head in each outcome in the sample space and assign this outcome.

3.Indicate the summary of the possible values of random variable.

Suppose three coins are tossed. Let Y be the random variable representing the number of tails that occur. Find the values of the random variable Y

What can you assume if the graph of a distribution is bell-shaped?

Use the rules of differentiation to differentiate the following functions.

1.f(x)=2x³+6x

2.g(x)=7x⁴-3x²

3.y(x)=(4x)³-18x²+6x

4.h(x)=(3x+4)²

5.h(x)=9x⅔+2/4√x

A basket contains 12 ripe and 7 unripe mangoes. If four mangoes are taken from the basket one after the other, how many samples space we have in this experiment?

A population consistent of value 3,5,7 and 9

1)List all the possible of size n=3 when drawing with replacement and compute the mean of each sample

2) construct a sampling distribution of the mean

3) compute for the mean and variance of the of the sample means