Given the following data, answer the following questions. Hi…
Questions
Given the fоllоwing dаtа, аnswer the fоllowing questions. Hint: Start by putting the data in a Contingency Table. In a study of smokers and non-smokers, the following data was obtained. Among 100 randomly selected 18-22 yr olds, 30 smoke and 70 do not. Among 110 randomly selected 23-30 yr olds, 25 smoke and 85 do not, and among 120 31-40 yr olds, 20 smoke and 100 do not. What is the probability of randomly picking someone from the study who is 31-40 yrs old and smokes? [31andsmoke] What is the probability of randomly picking someone from the study who is 18-22 yrs old or is a non-smoker? [18orNS] What is the probability of randomly picking someone from the study who smokes, given they are 23-30 yrs old? [Sgiven23] note: answer in decimal form and round to 3 decimal places