The distribution of the number of occurrences of the letter "a" on the pages of a book is found to be a normal distribution with

Question

The distribution of the number of occurrences of the letter "a" on the pages of a book is found to be a normal distribution with a mean of 60 and a standard deviation of 15. If there are 600 pages in the book, what percentage of the time is "a" found 45 times or more on a page? Select one:
a. 34% of the time
b. 84% of the time
c. 50% of the time
d. 68% of the time

Kunduz · Accepted Answer

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