The average number of words in a romance novel is 64,174 and the standard deviation is 17,215. Assume the distribution is normal. Let X be the number of words in a randomly selected romance novel....

The average number of words in a romance novel is 64,174 and the standard deviation is 17,215. 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 60,731 and 74,503 words.


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


d. The middle 50% of romance novels have from  words to  words. (Round to the nearest word)


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