Math Answers

 Jar A contains one white and two black balls, jar B contains five white and two black balls, and jar C contains four white and two black balls. One ball is selected from each jar. What is the probability that the ball chosen from jar B will be white, given that exactly two black balls are selected?

Show you work.

A group of students got the following scores in a test: 6, 11, 22, 17, 18, and 21. Consider samples of size 3 that can be drawn from this population.

List all the possible samples and the corresponding mean.

Construct the sampling distribution of the sample means.

The correct mathematical expression for

Five less than three times a number all divided by the product of

four and the same number

is

1.

((3n−5)/(4))×2

2.

(3n/4n)−5

3.

((3n-5/))/4n

4.

(5−3n)/(4+n)

X= 842, n= 1200, 95% CONFIDENCE

What is the relationship between the mean of a population and the mean of the sampling distribution of the sample mean?

A population has a mean of 70 and a standard deviation of 6. A random sample of 15 measurements is drawn from this population.

Find the Value of μ and n

2 ) How many ways can you listen to 3 songs from a CD that has 12 selections?

List the members of these sets.

{ x | x is a real number such that x2 = 1}

Suppose a population consists of the five measurements: 2, 6, 8, 0, and 1:

1. What is the mean and standard deviation of the population?

2. How many different samples of size n=2 can be drawn from the population? List them with their corresponding means.

Follow the step by step procedure.

a rectangle is inscribed under the curve y=2^-x with its base along the positive x-axis. Find the dimensions of the rectangle with the largest area