Question 1

In a large metropolitan area, past records revealed that 30 percent of all the high school graduates go to college. From 20 graduates selected at random, the probability is that approximately ______will go to college.

Accepted Answer

The answer of In a large metropolitan area, past records...

Question 2

A marketing solutions poll of mutual funds and fund owners asked fund owners what action they took after the September 11th 2001 market drop. Sixteen percent of respondents said they bought more funds. If 600 fund owners were polled, the mean of the number of respondents who bought more
funds =______ , and the standard deviation =______ . Considering as unusual a result that differs from the mean by more than two standard deviations, it ( (is/is not) ) unusual that in one of these polls of 600 fund owners, 100 respondents bought more mutual funds.

Accepted Answer

The answer of A marketing solutions poll of mutual funds...

Question 3

For the hypergeometric distribution there are_______ possible outcomes.

Accepted Answer

The answer of For the hypergeometric distribution there are_______ possible...

Question 4

The binomial distribution and the Poisson distribution have ________possible experimental
outcomes.

Accepted Answer

The answer of The binomial distribution and the Poisson distribution...

Question 5

In a Poisson distribution each trail is_______ .

Accepted Answer

The answer of In a Poisson distribution each trail is_______...

Question 6

Let X represent the number of children in a Canadian household. The probability distribution of X is as follows:  The probability that a randomly selected Canadian household will have more than 3 children is_____ . The expected number of children in a randomly selected Canadian household is______ .

Accepted Answer

The answer of Let X represent the number of children...

Question 7

In a large metropolitan area, past records revealed that 30 percent of all the high school graduates go to college. From 10 graduates selected at random, the probability that none will go to college is_____%.

Accepted Answer

The answer of In a large metropolitan area, past records...

Question 8

In the ___________distribution the probability of a success is not the same on each
trail.

Accepted Answer

The answer of In the ___________distribution the probability of a...

Question 9

A random variable with a Poisson distribution has one of_______ mutually exclusive values.

Accepted Answer

The answer of A random variable with a Poisson distribution...

Question 10

The Poisson distribution or, the law of improbable events, has______ skewed shape.

Accepted Answer

The answer of The Poisson distribution or, the law of...

Question 11

When surveyed for brand recognition, 98% of consumers recognize Coke. A new survey of 800 randomly selected consumers is to be conducted. For such a group of 800, the mean for the number who recognize the Coke brand name =_____ and the standard deviation =_____ . Considering as unusual a result that differs from the mean by more than two standard deviations, it ( (is/is not) ) unusual to get 775 consumers who recognize the Coke brand name.

Accepted Answer

The answer of When surveyed for brand recognition, 98% of...

Quiz 5: Discrete Probability Distributions

In a large metropolitan area, past records revealed that 30 percent of all the high school graduates go to college. From 20 graduates selected at random, the probability is that approximately ______will go to college.

For the hypergeometric distribution there are_______ possible outcomes.

The binomial distribution and the Poisson distribution have ________possible experimental outcomes.

In a Poisson distribution each trail is_______ .

Let X represent the number of children in a Canadian household. The probability distribution of X is as follows: The probability that a randomly selected Canadian household will have more than 3 children is_ . The expected number of children in a randomly selected Canadian household is__ .

In a large metropolitan area, past records revealed that 30 percent of all the high school graduates go to college. From 10 graduates selected at random, the probability that none will go to college is_____%.

In the ___________distribution the probability of a success is not the same on each trail.

A random variable with a Poisson distribution has one of_______ mutually exclusive values.

The Poisson distribution or, the law of improbable events, has______ skewed shape.