1. Solve the problem.

Michael gets test grades of 71, 76, 81, and 86. He gets a 93 on her final exam. Find the weighted mean if the tests each count for 15% and the final exam counts for 40% of the final grade. Round to one decimal place.

Select one:

A.241.3

B.81.4

C.84.3

D.-72.7

2. Use the empirical rule to solve the problem. The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mmHg and a standard deviation of 12 mmHg. What percentage of 18-year-old women have a systolic blood pressure between 96 mmHg and 144 mmHg?

Select one:

A.95%

B.99.99%

C.68%

D.99.7%

3. Express the indicated degree of likelihood as a probability value. "There is a 40% chance of rain tomorrow."

Select one:

A.0.60

B.40

C.0.40

D.4

4. Find the indicated probability. A sample space consists of 19 separate events that are equally likely. What is the probability of each?

Select one:

A.1

B. 1/19

C.0

D.19

5. Estimate the probability of the event. A polling firm, hired to estimate the likelihood of the passage of an up-coming referendum, obtained the set of survey responses to make its estimate. The encoding system for the data is:0=FOR;1=AGAINST. If the referendum were held today, estimate the probability that it would pass: 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0

Select one:

A.0.4

B.0.6

C.0.65

D.0.5

6. Find the indicated complement. _ If P(A) =15/17, find P(A). <---- A' cannot put line over A

Select one:

A.15/32

B.17/15

C.0

D.2/17

7. Find the indicated probability. A spinner has equal regions numbered 1 through 15. What is the probability that the spinner will stop on an even number or a multiple of 3?

Select one:

A.12

B. 2/3

C. 7/9

D. 1/3

8. Find the indicated probability. A 6-sided die is rolled. Find P(3 or 5).

Select one:

A.1/3

B.1/6

C.1/36

D.2

9. Find the indicated probability. The table below describes the smoking habits of a group of asthma sufferers.

Occasional Regular Heavy

Nonsmoker smoker smoker smoker Total Men 351 47 70 48 516

Woman 395 40 87 43 565

Total 746 87 157 91 1081 If one of the 1081 people is randomly selected, find the probability of getting a regular or heavy smoker.

Select one:

A.0.229

B.0.145

C.0.109

D.0.476

10. Find the indicated probability. In one town, 20% of all voters are Democrats. If two voters are randomly selected for a survey, find the probability that they are both Democrats. Round to the nearest thousandth if necessary.

Select one:

A.0.038

B.0.400

C.0.200

D.0.040

11. Find the indicated probability. The table below describes the smoking habits of a group of asthma sufferers. Light Heavy

Nonsmoker smoker smoker Total Men 402 35 42 479

Woman 376 45 33 454

Total 778 80 75 933 If two different people are randomly selected from the 933 subjects, find the probability that they are both heavy smokers. Round to six decimal places.

Select one:

A.0.0001778

B.0.002026

C.0.006462

D.0.006383

12. Solve the problem.

There are 13 members on a board of directors. If they must form a subcommittee of 5 members, how many different subcommittees are possible?

Select one:

A.154,440

B.120

C.1287

D.371,293