Question
Probability Unit Test
8 of 158 of 15 Items
Question
Suppose the probability of selecting a supermarket shopper who prefers plastic bags instead of paper bags is 50%. Out of 150 shoppers, how many can you expect will prefer plastic bags?(1 point)
Responses
50
50
100
100
70
70
75
Answers
GPT 3.5
The correct answer is 75.
Expected value = (Probability of selecting preference for plastic bags) x (Total number of shoppers)
Expected value = 0.5 x 150
Expected value = 75
Therefore, you can expect 75 shoppers out of 150 to prefer plastic bags.
Expected value = (Probability of selecting preference for plastic bags) x (Total number of shoppers)
Expected value = 0.5 x 150
Expected value = 75
Therefore, you can expect 75 shoppers out of 150 to prefer plastic bags.