Given the following information about a test, compute the KR-21. The test has 50 items, the median is 36, the mode is 34, the mean is 35, and the standard deviation is 4.
A) .30
B) .35
C) .40
D) .45

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The Answer of Given the following information about a test, compute the KR-21. The test has 50 items, the median is 36, the mode is 34, the mean is 35, and the standard deviation is 4.
A) .30
B) .35
C) .40
D) .45

Given the Following Information About a Test, Compute the KR-21