Identifying the Distribution Using a strict interpretation of the relevant criteria on page 50, does the frequency distribution given in Exercise 5 appear to have a normal distribution? Does the distribution appear to be normal if the criteria are interpreted very loosely?

Exercise 5:

Tar (mg) in Non-filtered Cigarettes

Frequency

10–13

1

14–17

0

18–21

15

22–25

7

26–29

2