AP Statistics Chapter 3 Review

1.42 < Z < 2.08 = %

2.04 < Z < 2.35 = %

Find the value for

P( 1.36 < Z < 2.65)

• 0.0866

• 0.9175

• -0.0829

• 0.0829

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days. About what percent of the products last between 12 and 15 days?

• 68%

• 99.7%

• 95%

• 34%

The speeds of cars on the highway have a mean of 95 km/h with a standard deviation of 5 km/h. What percentage of cars averaged less than 85 km/h?

• .15%

• 2.35%

• 2.5%

• 18.5%

A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a standard deviation of 4 minutes. If 2000 ticket buyers were in line, how many of them would expect to wait for less than 16 minutes?

• 320

• 1550

• 100

• 30

What is the the total area under the standard normal distribution curve?

• 100

• 25

• .5

• 1

What is the mean of the Normal Distribution?

What is the standard deviation of the Normal Distribution?

Find the value for

P( 0 < Z < 0.62)

• 0.7324

• 0.2324

• 0.5000

• -0.2324