Question

The average number of words in a romance novel is 64,315 and the standard deviation is 17,381. Assume the distribution is normal. Let X be the number of words in a randomly selected romance novel. Round all answers to 4 decimal places where possible.

a. What is the distribution of X? X ~ N(,)

b. Find the proportion of all novels that are between 53,886 and 67,791 words.

c. The 80th percentile for novels is words. (Round to the nearest word)

d. The middle 70% of romance novels have from words to words. (Round to the nearest word)

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