Statistics Unit Test

3 of 163 of 16 Items
Question
A local library manager randomly surveys 80 patrons about the type of book they borrow when they visit the library. The manager finds that 3 patrons borrow novels. If the local library has 345 patrons, approximately how many of them borrow novels when they visit the library? Round your answer to the nearest whole number.

1 answer

Based on the survey results, 3 out of 80 patrons borrow novels.

To find out approximately how many out of 345 patrons borrow novels, we can set up a proportion:

3/80 = x/345

Cross multiplying, we get:

80x = 3 * 345
80x = 1035
x = 1035/80
x ≈ 12.94

Rounded to the nearest whole number, approximately 13 patrons out of 345 borrow novels when they visit the library.
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