1. The table below describesthe smoking habits of a group of asthma sufferers. N

ID: 2913616 • Letter: 1

Question

1. The table below describesthe smoking habits of a group of asthma sufferers.

Nonsmoker Occasional Regular Heavy Total

_________ Smoker Smoker Smoker_______

Men 424 39 72 36 571

Women 360 46 77 44 527_

Total 784 85 149 80 1098

a. If one of the people israndomly selected, find the probability of getting someone who is aregular or heavy smoker. (5 points)

b. If one of the people israndomly selected, find the probability the person is a nonsmokergiven the person is a woman. (5 points)

c. Assuming we were to considera random sample of 15,000 people, how many would you predict arewomen and heavy smokers based on the results given here? (5points)

Explanation / Answer

a. the probability( getting someone who is a regular or heavysmoker )= = (number of regular smokers+number of heavy smokers) /total number of persons = (149+80) / 1098 = 0.2086 b) probability the person is a nonsmoker given the personis a woman = = number of womennon somkers / total number of women = 360 /527 = 0.68311 c) Assuming we were to consider a random sample of15,000 people, how many would you predict are women and heavysmokers based on the results given here P(women and heavy smokers) =number of women heavy smokers/total number of women = 44/527 = 0.0835 for a random sample of 15000 people, the predicted number ofwomen heavy smokers = 15000*0.0835 = 1252.5 =1253

Navigate

1. The table below contains sample data for parts and for suppliers who provide

1. The table below gives rough estimates of food chain lengths from various fiel

1. The table below describesthe smoking habits of a group of asthma sufferers. N

Question

Explanation / Answer

Related Questions

Navigate