Question 1

Sports Fans
Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected.
-{Sports Fans Narrative} Find the probability that at most 1 student is a sports fan.

Accepted Answer

The answer of Sports Fans
Suppose that past history shows that...

Question 2

Sports Fans
Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected.
-{Sports Fans Narrative} Find the probability that at least 1 student is a sports fan.

Accepted Answer

The answer of Sports Fans
Suppose that past history shows that...

Question 3

Sports Fans
Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected.
-{Sports Fans Narrative} Find the probability that exactly 1 student is a sports fan.

Accepted Answer

The answer of Sports Fans
Suppose that past history shows that...

Question 4

Let X be a binomial random variable with n = 25 and p = 0.01.
a.
Use the binomial table to find P(X = 0), P(X = 1), and P(X = 2).
b.
Find the variance and standard deviation of X.

Accepted Answer

The answer of Let X be a binomial random variable...

Question 5

Sports Fans
Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected.
-{Sports Fans Narrative} Find the probability that less than 1 student is a sports fan.

Accepted Answer

The answer of Sports Fans
Suppose that past history shows that...

Question 6

If X has a binomial distribution with n = 4 and p = 0.3, find P(X > 1).

Accepted Answer

The answer of If X has a binomial distribution with...

Question 7

If X has a binomial distribution with n = 4 and p = 0.3, find the probability that X is at most one.

Accepted Answer

The answer of If X has a binomial distribution with...

Question 8

If X has a binomial distribution with n = 4 and p = 0.3, find P(X = 1).

Accepted Answer

The answer of If X has a binomial distribution with...

Question 9

Sports Fans
Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected.
-{Sports Fans Narrative} Find the probability that more than 1 student is a sports fan.

Accepted Answer

The answer of Sports Fans
Suppose that past history shows that...

Question 10

If X has a binomial distribution with n = 4 and p = 0.3, find the probability that X is at least one.

Accepted Answer

The answer of If X has a binomial distribution with...

Question 11

A remedial program evenly enrolls tradition and non-traditional students.If a random sample of 4 students is selected from the program to be interviewed about the introduction of a new on-line class, what is the probability that all 4 students selected are traditional students?

Accepted Answer

The answer of A remedial program evenly enrolls tradition and...

Question 12

Sports Fans
Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected.
-{Sports Fans Narrative} A sample of 100 students is to be selected.What is the average number that you would expect to sports fan?

Accepted Answer

The answer of Sports Fans
Suppose that past history shows that...

Question 13

Online Bankers
An official from the securities commission estimates that 75% of all online bankers have profited from the use of insider information.Assume that 15 online bankers are selected at random from the commission's registry.
-{Online Bankers Narrative} Find the variance and standard deviation of the number of Online bankers who have profited from the use of insider information.

Accepted Answer

The answer of Online Bankers
An official from the securities commission...

Question 14

Sports Fans
Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected.
-{Sports Fans Narrative} A sample of 100 students is to be selected.What is the standard deviation of the number of sports fans you expect?

Accepted Answer

The answer of Sports Fans
Suppose that past history shows that...

Quiz 7: Random Variables and Discrete Probability Distributions

Sports Fans Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected. -{Sports Fans Narrative} Find the probability that at most 1 student is a sports fan.

Sports Fans Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected. -{Sports Fans Narrative} Find the probability that at least 1 student is a sports fan.

Sports Fans Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected. -{Sports Fans Narrative} Find the probability that exactly 1 student is a sports fan.

Let X be a binomial random variable with n = 25 and p = 0.01. a. Use the binomial table to find P(X = 0), P(X = 1), and P(X = 2). b. Find the variance and standard deviation of X.

Sports Fans Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected. -{Sports Fans Narrative} Find the probability that less than 1 student is a sports fan.

If X has a binomial distribution with n = 4 and p = 0.3, find P(X > 1).

If X has a binomial distribution with n = 4 and p = 0.3, find the probability that X is at most one.

If X has a binomial distribution with n = 4 and p = 0.3, find P(X = 1).

Sports Fans Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected. -{Sports Fans Narrative} Find the probability that more than 1 student is a sports fan.

If X has a binomial distribution with n = 4 and p = 0.3, find the probability that X is at least one.

A remedial program evenly enrolls tradition and non-traditional students.If a random sample of 4 students is selected from the program to be interviewed about the introduction of a new on-line class, what is the probability that all 4 students selected are traditional students?

Sports Fans Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected. -{Sports Fans Narrative} A sample of 100 students is to be selected.What is the average number that you would expect to sports fan?

Sports Fans Suppose that past history shows that 5% of college students are sports fans.A sample of 10 students is to be selected. -{Sports Fans Narrative} A sample of 100 students is to be selected.What is the standard deviation of the number of sports fans you expect?