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 would your answer be 50 or 100 or 70 or 75?

Answer 1

The answer would be 75 shoppers. Since the probability of selecting a shopper who prefers plastic bags is 50%, half of the shoppers (75 out of 150) would be expected to prefer plastic bags.