24. What percentage of the data lies between the mean and three standard deviations above the mean?

Select one or more:

a.

2.5%

b.

49.85%

c.

95%

d.

34%

e. 16%

25. What percentage of the data lies beyond one standard deviation above the mean?

Select one or more:

a.

16%

b.

34%

c.

95%

d.

49.85%

e. 2.5%

29. If the probability of event E occurring is 0.23, what is the probability of event E not occurring?

Select one or more:

a.

0.41

b.

0.77

c.

0.99

d.

-0.55

e. O.23

31. Scores on the TTICK test are normally distributed with mean of 127 and a std. deviation of 12. If one student takes the TTCK test, what is the probability that the student will score between 122 and 132?

a.

.1340

b.

.9778

c.

.3256

d.

.8198

e.

.6700

32. Using the TTICK test mean and standard deviation from the previous question, if sixteen students take the TTICK test, what is the probability that the mean score of the sixteen students is between 122 and 132?

a.

.1342

b.

.6700

c.

.9050

d.

.4972

e.

.9778

33. Using the TTICK data from the previous question, if a student is randomly selected, what is the probability that that student's score will exceed 130?

a.

.0071

b.

.4013

c.

.9812

d.

.1587

e.

.6972