In another study of the safety of tanning beds, 375 women who got melanoma before age 40 were compared two 275 similar women who had not. Of the women who got melanoma, 103 had used tanning beds. Of those who had not gotten melanoma, 67 had used tanning beds.

a. What two groups are being compared? What is the response variable?
b. Display the data in a two-way frequency table.
c.Compute the absolute risk of both groups
d. Compute and interpret the absolute risk reduction of melanoma between the two groups.
e.Compute and interpret the relative risk of melanoma between the two groups.