At a store, customers are randomly selected to participate in a survey. On Friday, there were 500 customers at the store. Out of

Question

2 years ago

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At a store, customers are randomly selected to participate in a survey. On Friday, there were 500 customers at the store. Out of

all those people, 90 were selected to participate in the survey. On Saturday, the store manager expects 700 customers in the store. If the probability of being selected to participate in the survey on Saturday is the same as it was on Friday, how many customers will be selected to participate in the survey on on Saturday?

Mathematics

1 answer:

Svetlanka [38] · Answer 1 · 2022-04-18T16:46:07+03:00

Divide the number of people selected by the total number of people.

90/500 = .18

This means that 18% of the customers were selected for the survey.

If the probability is the same on Saturday, then we can multiply the expected customers by our .18

700 x .18 = 126

126 should be selected for the survey on Saturday.