5. Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 129 of the first 138 customers have not received a star on their receipts. What is the experimental probability of winning a free gallon of milk?

Question

3 46 43 46 11 138 43 138 о о о

Answer 1

The experimental probability of winning a free gallon of milk is 9/138 or approximately 0.0652. This is because only 9 of the 138 customers received a star on their receipt (129 did not), and the probability is the number of desired outcomes (winning a free gallon of milk) divided by the total number of outcomes (number of customers).