Julie conducts an experiment to find the average word length in a book for a 4th grader and a book for an 8th grader. She finds that for the fourth grade book the mean word length is 5 letters with a range of 6 and for the 8th grade book the mean word length is 6 letters with a range of 9. Which statement is true?
A. The word length varies more in the 4th grade book than the 8th grade book.
B. The longest word in the 8th grade book contains 15 letters.
C. On average, the book for the 8th grader has longer words.
D. The longest word in the book for the 4th grader is longer than that in the 8th grade book.
A. The word length varies more in the 4th grade book than the 8th grade book. (This is based on the range, which is larger for the 4th grade book.)
B. We cannot determine the length of the longest word in the 8th grade book from the information given.
C. On average, the book for the 8th grader has longer words. (This is true based on the mean word length given for each book.)
D. We cannot determine the length of the longest word in the 4th grade book from the information given.