The average number of words in a romance novel is 64,419 and thestandard deviation is 17,160. 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 71,283 and83,295 words.
c. The 85th percentile for novels is  words. (Round tothe nearest word)
d. The middle 60% of romance novels have from  wordsto  words. (Round to the nearest word)