What percentage of population will lie between given value
Suppose we have a population of scores with a mean (µ) of 975 and a standard deviation (s) of 15. Assume that the distribution is normal. Provide answers to the following questions:
What percentage of the population will lie between 960 and 990?
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Suppose we have a population of scores with a mean (µ) of 975 and a standard deviation (s) of 15. What percentage of the population will lie between 960 and 990?
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The following frequency distribution presents a set of exam scores for a class of N = 20 students. What is the percentile rank for X = 90?
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