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The class field trip to the zoo was a huge success! The kids especially liked the bears, the dolphins, the monkeys, and the elephants. Taking a poll, the teachers found the following: all those who liked bears also liked the monkeys. Half of those who liked dolphins also liked monkeys. There were 24 who liked dolphins. However, none of those who liked elephants also liked bears. There were 16 who liked dolphins but not elephants. All those who liked elephants also liked monkeys. Half of those who liked elephants also liked dolphins. None who liked bears also liked dolphins. There were 9 who liked only monkeys. There were 15 who liked bears. How many liked monkeys? How many liked monkeys, elephants, and dolphins – all 3?

The class field trip to the zoo was a huge success! The kids especially liked the bears, the dolphins, the monkeys, and the elephants. Taking a poll, the teachers found the following: all those who liked bears also liked the monkeys. Half of those who liked dolphins also liked monkeys. There were 24 who liked dolphins. However, none of those who liked elephants also liked bears. There were 16 who liked dolphins but not elephants. All those who liked elephants also liked monkeys. Half of those who liked elephants also liked dolphins. None who liked bears also liked dolphins. There were 9 who liked only monkeys. There were 15 who liked bears. How many liked monkeys? How many liked monkeys, elephants, and dolphins – all 3?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 13CYU
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The class field trip to the zoo was a huge success! The kids especially liked the bears, the dolphins, the monkeys, and the elephants. Taking a poll, the teachers found the following: all those who liked bears also liked the monkeys. Half of those who liked dolphins also liked monkeys. There were 24 who liked dolphins. However, none of those who liked elephants also liked bears. There were 16 who liked dolphins but not elephants. All those who liked elephants also liked monkeys. Half of those who liked elephants also liked dolphins. None who liked bears also liked dolphins. There were 9 who liked only monkeys. There were 15 who liked bears. How many liked monkeys? How many liked monkeys, elephants, and dolphins – all 3?
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