math (please check answer)

6. 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 experimental probability of winning a free gallon of milk?

A. 11/156
B. 49/52
C. 2/39
D. 3/52*****?

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asked by Me
  1. probability of failure = 147/156

    it has to be one or the other so
    1 - 147/156 = 9/156 = 3/52 agree

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    posted by Damon
  2. thank you!

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    posted by Me
  3. You are welcome.

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    posted by Damon
  4. oof

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    posted by oof
  5. just took test, d is correct

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