Concept explainers
One semester in a chemistry class, 14 students failed due to poor attendance, 23 failed due to not studying, 15 failed because they did not turn in assignments, 9 failed because of poor attendance and not studying, 8 failed because of not studying and not turning in assignments, 5 failed because of poor attendance and not turning in assignments, and 2 failed because of all three of these reasons.
- (a) How many failed for exactly two of the three reasons?
- (b) How many failed because of poor attendance and not studying but not because of not turning in assignments?
- (c) How many failed because of exactly one of the three reasons?
- (d) How many failed because of poor attendance and not turning in assignments but not because of not studying?
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