AP Stats Chapter 6

Again, assume the test scores follow the model N(82,5). What scores would put you in the top 10% of scores?

• 92 or higher

• 88.4 or higher

• 75.6 or higher

• 90 or higher

Again, assume the test scores follow the model N(82,5). What % of the scores are between 80 and 90?

• 50%

• 60%

• 70%

• unable to determine

Again, assume the test scores follow the model N(82,5). What test score corresponds to the 90th percentile?

• 28

• 6.41

• 88.4

• 86.5

True or False? A compound event consists of two or more outcomes or simple events.

• True

• False

If the probability that it will rain tomorrow is 0.37, what is the probability that it will not

rain tomorrow?

• 0.37

• -0.37

• 0.63

• 1.37

True or False? If there are 18 equally likely events, then the probability of the first one occuring is 1/18.

• True

• False

A group of 10 male and 8 female students is talking about going out for pizza. If 50%

of the male students actually go and 25% of the female students actually go, find the

probability that a random student who goes out for pizza is female.

• 1/8

• 4/5

• 2/7

• 1/18

In the Happy Hilltop Health Home, 10% of the residents play shuffleboard, 35% of the residents play poker, and 10% of the residents garden. If 5% of the residents play poker and garden, find the probability that a resident plays poker, given that they also garden.

• 50%

• 14%

• 6%

• 8%

Evaluate the following: 7C3.

• 210

• 5040

• 35

• 6

There are 52 colored markers in a bag. There are 13 different colors, and 4 markers of each, including yellow. What is the probability that Michelle will pull out a yellow marker?

• 1/4

• 1/2

• 1/13

• 4/13