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31 votes
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the owner of a craft store wanted to know if her customers preferred oil pastel art chalk pastel she surveyed a group of 50 customers on three different days last week at the end of the survey she learned that a total of 39 of the customers surveyed preferred chalk pastels for the following three questions using the information gathered determine whether each statement is true or false up 1. of her customer survey 74% preferred oil pastels is that true or false 2.if the owner surveyed 200 customers next week she would expect to find 55 who prefer chalk pastels true or false

User Flyingfishcattle
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1 Answer

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8 votes

Blackwell, this is the solution:

1. This is false. 39 out of 50 is 78%, not 74%.

39/50 = 0.78 = 78%

2. This is false. 11 out of 50 prefer chalk pastel, then, 44 out of 200 will prefer it next week.

User Amonett
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