A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke), 130 people in the 23-30 age bracket (31 of whom smoke), and 100 people in the 31-40 age bracket (30...

A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke), 130 people in the 23-30 age bracket (31 of whom smoke), and 100 people in the 31-40 age bracket (30 of whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 18-22 or smokes.