Suppose da probalot f selecting a supermarket shopper who prefers plastic bags instead of paper bags is 50%. Out of 150 shoppers, how many can u expect will prefer plastic bags

Question

A ) 50

B ) 70

C ) 100

D ) 75

Answer 1

To find the expected number of shoppers who prefer plastic bags, you can use the probability of selecting a shopper who prefers plastic bags and multiply it by the total number of shoppers.

Given that the probability of a shopper preferring plastic bags is 50% (or 0.50) and there are 150 shoppers, you can calculate it as follows:

\[ \text{Expected number of plastic bag users} = \text{Total shoppers} \times \text{Probability} \] \[ \text{Expected number of plastic bag users} = 150 \times 0.50 = 75 \]

So, the expected number of shoppers who prefer plastic bags is 75.

The correct answer is D) 75.