Question 1

A company is studying the number of daily debit card purchases. There were 20 purchases and the probability of a debit card purchase is 0.5. Of the 20 purchases, what is the expected value of the number of debit card purchases?

Accepted Answer

The answer of A company is studying the number of...

Question 2

For the following probability distribution:  The variance is _____________.

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The answer of For the following probability distribution:  The...

Question 3

The arrival of customers at a service desk follows a Poisson distribution. If they arrive at a rate of two every five minutes, what is the probability that no customers arrive in a five-minute period?

Accepted Answer

The answer of The arrival of customers at a service...

Question 4

The mean of a binomial distribution is calculated using ____.

Accepted Answer

The answer of The mean of a binomial distribution is...

Question 5

For the following probability distribution:  The standard deviation is _____________.

Accepted Answer

The answer of For the following probability distribution:  The...

Question 6

Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers. Suppose 15 customers are selected at random. What is the probability that all 15 will want hot peppers?

Accepted Answer

The answer of Elly's Hotdog Emporium is famous for its...

Question 7

A company is studying the number of daily debit card purchases. There were 20 purchases and the probability of a debit card purchase is 0.5. Based on the shape of the distribution, approximately 99.7% of the purchases should be between _______ and ________.

Accepted Answer

The answer of A company is studying the number of...

Question 8

For the following probability distribution:  The mean is _____________.

Accepted Answer

The answer of For the following probability distribution:  The...

Question 9

There are eight flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that 1 or more are late?

Accepted Answer

The answer of There are eight flights from Minneapolis to...

Question 10

A company is studying the number of daily debit card purchases. There were 20 purchases and the probability of a debit card purchase is 0.5. What is the standard deviation of the number of debit card purchases?

Accepted Answer

The answer of A company is studying the number of...

Question 11

For the following probability distribution:  The variance is _____________.

Accepted Answer

The answer of For the following probability distribution:  The...

Question 12

Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers. Suppose 15 customers are selected at random. What is the probability that between two and six people inclusive want hot peppers?

Accepted Answer

The answer of Elly's Hotdog Emporium is famous for its...

Question 13

For the following probability distribution:  The mean is _____________.

Accepted Answer

The answer of For the following probability distribution:  The...

Question 14

For the following probability distribution:  The standard deviation is _____________.

Accepted Answer

The answer of For the following probability distribution:  The...

Question 15

There are eight flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that none are late?

Accepted Answer

The answer of There are eight flights from Minneapolis to...

Question 16

The arrival of customers at a service desk follows a Poisson distribution. If they arrive at a rate of four every five minutes, what is the probability that more than four customers arrive in a five-minute period?

Accepted Answer

The answer of The arrival of customers at a service...

Question 17

For the hypergeometric distribution there are ________________ possible outcomes.

Accepted Answer

The answer of For the hypergeometric distribution there are ________________...

Question 18

Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers. Suppose 15 customers are selected at random. What is the probability that exactly 10 customers will ask for hot peppers?

Accepted Answer

The answer of Elly's Hotdog Emporium is famous for its...

Question 19

Affirmative action commitments by many organizations have led to an increase in the number of women in executive positions. Satellite Office Systems has vacancies for two executives that it will fill from among four women and six men.
What is the probability that exactly one woman is selected?

Accepted Answer

The answer of Affirmative action commitments by many organizations have...

Question 20

The mean of a Poisson distribution is calculated using ____.

Accepted Answer

The answer of The mean of a Poisson distribution is...

Quiz 6: Discrete Probability Distributions

A company is studying the number of daily debit card purchases. There were 20 purchases and the probability of a debit card purchase is 0.5. Of the 20 purchases, what is the expected value of the number of debit card purchases?

For the following probability distribution: The variance is _____________.

The arrival of customers at a service desk follows a Poisson distribution. If they arrive at a rate of two every five minutes, what is the probability that no customers arrive in a five-minute period?

The mean of a binomial distribution is calculated using ____.

For the following probability distribution: The standard deviation is _____________.

Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers. Suppose 15 customers are selected at random. What is the probability that all 15 will want hot peppers?

A company is studying the number of daily debit card purchases. There were 20 purchases and the probability of a debit card purchase is 0.5. Based on the shape of the distribution, approximately 99.7% of the purchases should be between _ and __.

For the following probability distribution: The mean is _____________.

There are eight flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that 1 or more are late?

A company is studying the number of daily debit card purchases. There were 20 purchases and the probability of a debit card purchase is 0.5. What is the standard deviation of the number of debit card purchases?

For the following probability distribution: The variance is _____________.

Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers. Suppose 15 customers are selected at random. What is the probability that between two and six people inclusive want hot peppers?

For the following probability distribution: The mean is _____________.

For the following probability distribution: The standard deviation is _____________.

There are eight flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that none are late?

The arrival of customers at a service desk follows a Poisson distribution. If they arrive at a rate of four every five minutes, what is the probability that more than four customers arrive in a five-minute period?

For the hypergeometric distribution there are ________________ possible outcomes.

Elly's Hotdog Emporium is famous for its chilidogs. Elly's latest sales indicate that 30% of the customers order their chilidogs with hot peppers. Suppose 15 customers are selected at random. What is the probability that exactly 10 customers will ask for hot peppers?

Affirmative action commitments by many organizations have led to an increase in the number of women in executive positions. Satellite Office Systems has vacancies for two executives that it will fill from among four women and six men. What is the probability that exactly one woman is selected?

The mean of a Poisson distribution is calculated using ____.