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Given that every tenth person in line will get a coupon for a free box of popcorn at the movies what is the probability that you don't get a coupon when your in line

Given that every tenth person in line will get a coupon for a free box of popcorn-example-1
User Okku
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SOLUTION:

Step 1:

In this question, we are given the following:

Given that every tenth person in line will get a coupon for a free box of popcorn at the movies.

We are meant to find the probability that you don't get a coupon when you are in the line.

Step 2:

We can see that the probability that the person was in the line and got a coupon is:


(1)/(10)

Then, the probability that the person did not get a coupon when he was in the line is:


(\text{ 1 -}(1)/(10))\text{ = }(9)/(10)

User Subin Sebastian
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