Answer the following questions:

1.

Use the following information from Question 6. Fifty randomly selected students were asked how many hours, to the nearest hour, they exercise a week. The results are summarized in the table below. Hours Frequency Relative Frequency Cumulative Relative Frequency 0-2 3 3-5 7 6-8 13 9 - 11 9 12 - 14 15-17 9 18 or more 2 What proportion of students exercise 12 or more hours a week? O 0.36 O 0.22 O 0.14 O 0.78\f\f\f\f