Solve the probiem 40) The table lists the drinking habits of a group of college

Question

Solve the probiem 40) The table lists the drinking habits of a group of college students. If a student is chosen at random, 40) find the probability of getting someone who is a non-drinker. Round your answer to three decimal Sex Non-drinker Regular Drinker |Heavy Drinker Total 135 187 322 12 21 63 10 15 C) 1 218 Total B) 0.195 D) 0.923 A) 0.805 D STATIDES 52.1-5 Objecive (52) Use the Addition Rale for Disjoint Events 41) One hundred people were asked, Do you favor stronger laws on gun control? Of the 33 that 41) answered "yes" to the question, 14 were male. Of the 67 that answered "no" to the question, six were male. If one person is selected at random, what is the probability that this person answered "yes" or was a male? Round the the nearest hundredth. A) 0.13 B) 0.53 C) 0.67 D) 0.39 Topic Cbjuctive (32) Use the General Addition Rule 42) A sample of 250 shoppers at a large suburban mall were asked two questions: (1) Did you see a42) television ad for the sale at department store X during the past 2 weeks? (2) Did you shop at department store X during the past 2 weeks? The responses to the questions are summarized in the table. What is the probability that a randomly selected shapper from the 250 questioned did not shop at department store X7 Round the the nearest thousandth. Saw ad 115 35 B) 0.4 Did not see ad A) 0.6 C0.26 D) 0.14 D. STATIDSS 523-& Objectiver (5.2) Compute the probab ility ofnt using the Complement Rale 10

Explanation / Answer

Q 40

Prob of Non drinker = 322/400 = 0.805

Answer: Option A)

Q 41

P(Yes) = 33/100

P(M) =20/100

P(YEs and M) = 14/100

P(Yes or M) = P(Yes)+P(M)-P(Y and M) = (33+20-14)/100 = 39/100 = 0.39

Answer: Option D

Q 42

P(shopper did not shop at store X) =(35+65)/250 = 100/250 = 0.4

ANswer: Option B)

Yes No Total M 14 6 20 F 19 61 80 Total 33 67 100

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