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
Explanation / Answer
10) b. an outcome. 11) a. positively-skewed 12) b. 1.9 13) c. 0.0625 14) e. all of the above are correct 15) c. about 95.0 percent of the observations 16) a. measures distance from the mean inunits of the standard deviationRelated Questions
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