A sample of final exam scores is normally distributed with a mean equal to 20 and...
A sample of final exam scores is normally distributed with a
mean equal to 20 and a variance equal to 16.
-
Part (a)
What percentage of scores are between 16 and 24? (Round your answer to two decimal places.)
% -
Part (b)
What raw score is the cutoff for the top 10% of scores? (Round your answer to one decimal place.)
-
Part (c)
What is the proportion below 15? (Round your answer to four decimal places.)
-
Part (d)
What is the probability of a score less than 25? (Round your answer to four decimal places.)
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A sample of final exam scores is normally distributed with a
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