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A group of 220 college students who took math last term were interviewed. They were asked whether they passed their math course and whether they live on
campus. Their responses are summarized in the following table.
Passed math Failed math
Live on campus
66
22
Live off campus
55
77
(a) What percentage of the students passed math? |%
X 5 ?
(b) what percentage of the students live on campus? |%
(c) What percentage of the students who live on campus passed math?|%
(d) Is there evidence that students who live on campus tend to pass math more
often than average?
No, because the percentage found in part (c) is about the same as the
percentage found in part (a).
No, because the percentage found in part (c) is about the same as the
percentage found in part (b).
Yes, because the percentage found in part (c) is much greater than the
percentage found in part (a).
Yes, because the percentage found in part (c) is much greater than the
percentage found in part (b).

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