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, 147 of the first 156 customers have not received a star on their receipts. What is the experimental probability of winning a free gallon of milk?
A. eleven over one hundred fifty-six
B. forty-nine over fifty-two
C. two over thirty-nine
D. three over fifty-two
The total number of customers is 156. Since 147 of them did not receive a star on their receipts, that leaves 156-147=9 customers with stars on their receipts.
The experimental probability of winning a free gallon of milk is the number of customers who received stars (9) divided by the total number of customers (156):
9/156
Simplifying this fraction gives us:
3/52
So the answer is D. 3 over 52.
To find the experimental probability of winning a free gallon of milk, we need to determine the ratio of the number of customers who have received a star on their receipt to the total number of customers. In this case, the number of customers who have received a star on their receipt is 156 - 147 = 9.
The total number of customers is given as 156.
Therefore, the experimental probability of winning a free gallon of milk is 9/156.
To simplify this fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 3.
9/156 can be simplified to 3/52.
Hence, the answer is D. three over fifty-two.
To find the experimental probability of winning a free gallon of milk, we need to determine the number of customers who received a star on their receipt.
Out of the first 156 customers, 147 did not receive a star. Therefore, the remaining 9 customers must have received a star to win a free gallon of milk.
The experimental probability is the number of successful outcomes (customers who received a star) divided by the total number of outcomes (total number of customers).
So, the experimental probability is 9 (successful outcomes) divided by 156 (total number of customers).
Simplifying the fraction, we have:
9/156
To choose the correct answer option, we can simplify the fraction further:
9/156 = 3/52
Therefore, the correct answer is:
D. three over fifty-two.