Mathematics, 25.09.2021 07:30 hntnhtthnyt
Suppose that the distribution of scores on an exam is mound shaped and approximately symmetric. The exam scores have a mean of 100 and the 16th percentile is 75. (Use the Empirical Rule.)
(a)
What is the 84th percentile?
(b)
What is the approximate value of the standard deviation of exam scores?
(c)
What is the z-score for an exam score of 90?
(d)
What percentile corresponds to an exam score of 150?
%
Answers: 3
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Suppose that the distribution of scores on an exam is mound shaped and approximately symmetric. The...
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