Hee Sun wants to estimate the average world length in a book. She randomly chooses 20 words in the book, as shown. Based on this sample, which is the best estimate of the mean word length in the book? (I chose D, but I’m not sure if I’m correct.)

Hee Sun wants to estimate the average world length in a book She randomly chooses 20 words in the book as shown Based on this sample which is the best estimate class=