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13 February, 08:07

A national survey found that 60% of all movie theater patrons purchase popcorn. Of those that purchase popcorn, 80% add salt and 65% add butter. Assuming the national survey is correct, find the expected value of movie theater patrons who will purchase popcorn out of a sample of 500.

Select one:

a. 300

b. 400

c. 325

d. Cannot be determined

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Answers (1)
  1. 13 February, 08:33
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    a. 300

    Explanation:

    Assuming that 60% of theater patrons purchase popcorn, the value of theater patrons who will purchase a popcorn out a sample of 500 will be 60% of 500.

    i. e = (60/100) x 500

    = 300

    300 patrons will purchase popcorn in a sample of 500 theater goers assuming that 60% theater patrons purchase popcorn.
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