Homework Clinic
Mathematics Clinic => Grade 11 and 12 Mathematics => Topic started by: RYAN BANYAN on Jul 25, 2018
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The table below describes the smoking habits of a group of asthma sufferers.
Nonsmoker
Occasional
smoker
Regular
smoker
Heavy
smoker Total
Men 431 50 71 49 601
Women 382 48 86 39 555
Total 813 98 157 88 1156
If one of the 1156 people is randomly selected, find the probability that the person is a man or a
heavy smoker.
A) 0.511 B) 0.554 C) 0.596 D) 0.557
Question 2
If a game were fair, the payoff on a bet would be the same as the odds for the event. In
one game, the odds for winning are 1:13.
If the game were fair, what would the payoff be
for a 5 bet? Of course, games in casinos are designed to make a profit for the casino
investors. Supposing the casino makes the payoff at 1:11 odds, what profit does the casino
make on your winning bet?
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Answer to Question 1
B
Answer to Question 2
In a fair game the payoff would be 70 = 135 + 5 original bet. The casino payoff would be 60 = 115 + 5 original bet.
The profit would be 10.