10. When an activity is measured or observed, it iscalled: a. an experiment. b.
ID: 2915265 • Letter: 1
Question
10. When an activity is measured or observed, it iscalled:
a. an experiment.
b. an outcome.
c. an event.
d. a probability.
11. Which of the following is not a characteristic of the normal
probability distribution?
a. positively-skewed
b. bell-shaped
c. symmetrical
d. asymptotic
e. all of the above are characteristic of the normal
probability distribution.
12. The variance of a probability was computed to be3.6 grams.
The standard deviation is:
a. 0.6
b. 1.9
c. 6.0
d. 12.96
e. None of the above
13. A multiple choice test consists of fourquestions. You
guessed the answer to allquestions. What is the
probability of getting all fourquestions correct.
Hint: The answers are eithercorrect or not correct.
a. 0
b. 1
c. 0.0625
d. 0.25
e. None of the above.
14. In a normal distribution, the
a. mean equals the mode and the median
b. mode equals the median
c. mean divides the distribution into 2 equal parts
d. mean equals zero on the z-scale
e. all of the above are correct
15. For the normal distribution, the mean plus and minus1.96
standard deviations will include:
a. about 50 percent of the observations
b. about 99.7 percent of the observations
c. about 95.0 percent of the observations
d. all the observations
16. The standard z value:
a. measures distance from the mean in units ofthe
standard deviation
b. applies to any binomial distribution
c. may not have negative values
d. all of the above are correct