A sample of final exam scores is normally distributed with a mean equal to 20 and a variance equal to 25. (a). What percentage of scores is between 10 and 20? (b). What raw score is the cutoff for the top 5% of scores?
A sample of final exam scores is normally distributed with a mean equal to 20 and a variance
equal to 25.
(a). What percentage of scores is between 10 and 20?
(b). What raw score is the cutoff for the top 5% of scores?
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