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11. A \"good\" measure of dispersion should. A. use all scores in a distribution

ID: 3128883 • Letter: 1

Question

11. A "good" measure of dispersion should.

A. use all scores in a distribution

B. describe the average or typical deviation of the score

C. be wasy to calculate and interpert

D. all of the above

12.To estimate probabilties set up a fraction with the number of ____ in the numerator and the number of___ in the demonenator

A.success, failures

B. possible outcomes, successes

C. failures, successes,

D. successes, possible outcomes

13. The range s found by subtracting the lowest frin the highest score in distribution. Therefor, R could NOT be found for

A. nominal level variables

B. intervariable level variables,

C, Ordinal level variables

D. continuous Variables

15. A sample selected according to the princple of EPSEM is extremely likely to be

A.large

B. biased

C. representative

D. inaccurate

18. Unlikes a empircal distribution the theroretical normal curve is

a. positively skewed

b. negatively skewed

c. bimodal

d. perfectly symmetrical

The area between the mean and a Z score of +1.50 is 43.2%. This score is higher than ____ of the scores

A.43.32%

B. 51.50%

C. 57.68%

D.93.32%

Explanation / Answer

11.

OPTION D. all of the above

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12.

By definition,

OPTION D. successes, possible outcomes [answer]

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13.

OPTION A. nominal level variables [ANSWER]

It does not make sense to subtract nominal variables.

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