Question 1

The student in section 1 scored 84, while the student in section 2 scored 75. The student from section _____ scored better compared than the rest of the section.

Accepted Answer

The answer of  The student in section 1 scored...

Question 2

Two business major students, in different sections of an economics class, were comparing test scores. The following shows the sections' mean and standard deviation.  The student in section 1 scored 84. The student's z score would be _________.

Accepted Answer

The answer of Two business major students, in different sections...

Question 3

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the average monthly amount charged is uniformly distributed, the third quartile of the distribution would be _______.

Accepted Answer

The answer of A major credit card company has determined...

Question 4

To apply the normal approximation to a binomial distribution, what must be true?

Accepted Answer

The answer of To apply the normal approximation to a...

Question 5

The annual income for a sample of 500 part-time students is normally distributed with a mean income of $30,000 and a standard deviation of $3,000. The income range that separates the top 25% from the lower 75% is __________.

Accepted Answer

The answer of The annual income for a sample of...

Question 6

The formula used to compute the standard deviation is ________.

Accepted Answer

The answer of The formula used to compute the standard...

Question 7

To apply the normal approximation to a binomial distribution, mean, and variance are ________.

Accepted Answer

The answer of To apply the normal approximation to a...

Question 8

What happens to the shape of a binomial distribution as the number of trials increases?

Accepted Answer

The answer of What happens to the shape of a...

Question 9

In the exponential distribution, the mean and standard deviation are equal to ______________.

Accepted Answer

The answer of In the exponential distribution, the mean and...

Question 10

A major credit card company has determined that customers charge between $100 and $1100 per month. If the monthly amount charged is uniformly distributed, the standard deviation of the monthly amount charged would be ________.

Accepted Answer

The answer of A major credit card company has determined...

Question 11

For the standard normal distribution, the z score that corresponds with the 85^th percentile is ________.

Accepted Answer

The answer of For the standard normal distribution, the z...

Question 12

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the average monthly amount charged is uniformly distributed, the percent of monthly changes between $311 and $889 is _______.

Accepted Answer

The answer of A major credit card company has determined...

Question 13

The formula to convert any normal distribution for a random variable, x, to the standard normal distribution is ____________.

Accepted Answer

The answer of The formula to convert any normal distribution...

Question 14

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the average monthly amount charged is uniformly distributed, the percent of monthly charges between $600 and $889 would be ______.

Accepted Answer

The answer of A major credit card company has determined...

Question 15

For the standard normal distribution, the z-score that corresponds with the first quartile is ________.

Accepted Answer

The answer of For the standard normal distribution, the z-score...

Question 16

The exponential distribution can be used to predict ________.

Accepted Answer

The answer of The exponential distribution can be used to...

Question 17

The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. The probability that a bag of corn chips weighs between 20.75 and 23.25 ounces is ____.

Accepted Answer

The answer of The weight of a bag of corn...

Question 18

The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. The probability that a bag of corn chips weighs more than 21 ounces is ____.

Accepted Answer

The answer of The weight of a bag of corn...

Question 19

Two business major students, in two different sections of an economics class, were comparing test scores. The following shows the sections' mean and standard deviation.  The student in section 2 scored 75. The student's z score would be _____.

Accepted Answer

The answer of Two business major students, in two different...

Question 20

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the monthly amount charged is uniformly distributed, the average charge would be ______.

Accepted Answer

The answer of A major credit card company has determined...

Quiz 7: Continuous Probability Distributions

The student in section 1 scored 84, while the student in section 2 scored 75. The student from section _____ scored better compared than the rest of the section.

Two business major students, in different sections of an economics class, were comparing test scores. The following shows the sections' mean and standard deviation. The student in section 1 scored 84. The student's z score would be _________.

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the average monthly amount charged is uniformly distributed, the third quartile of the distribution would be _______.

To apply the normal approximation to a binomial distribution, what must be true?

The annual income for a sample of 500 part-time students is normally distributed with a mean income of $30,000 and a standard deviation of $3,000. The income range that separates the top 25% from the lower 75% is __________.

The formula used to compute the standard deviation is ________.

To apply the normal approximation to a binomial distribution, mean, and variance are ________.

What happens to the shape of a binomial distribution as the number of trials increases?

In the exponential distribution, the mean and standard deviation are equal to ______________.

A major credit card company has determined that customers charge between $100 and $1100 per month. If the monthly amount charged is uniformly distributed, the standard deviation of the monthly amount charged would be ________.

For the standard normal distribution, the z score that corresponds with the 85th percentile is ________.

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the average monthly amount charged is uniformly distributed, the percent of monthly changes between $311 and $889 is _______.

The formula to convert any normal distribution for a random variable, x, to the standard normal distribution is ____________.

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the average monthly amount charged is uniformly distributed, the percent of monthly charges between $600 and $889 would be ______.

For the standard normal distribution, the z-score that corresponds with the first quartile is ________.

The exponential distribution can be used to predict ________.

The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. The probability that a bag of corn chips weighs between 20.75 and 23.25 ounces is ____.

The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. The probability that a bag of corn chips weighs more than 21 ounces is ____.

Two business major students, in two different sections of an economics class, were comparing test scores. The following shows the sections' mean and standard deviation. The student in section 2 scored 75. The student's z score would be _____.

A major credit card company has determined that customers charge between $100 and $1,100 per month. If the monthly amount charged is uniformly distributed, the average charge would be ______.

For the standard normal distribution, the z score that corresponds with the 85^th percentile is ________.