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anonymous
 one year ago
Mrs. Grady surveyed 30 students, 12 of which said they liked basketball, 19 of which said they liked hockey, and 4 of which said they liked both sports.
(a) How many students did not like either sport?(b) How many students liked exactly one of the sports?
anonymous
 one year ago
Mrs. Grady surveyed 30 students, 12 of which said they liked basketball, 19 of which said they liked hockey, and 4 of which said they liked both sports. (a) How many students did not like either sport?(b) How many students liked exactly one of the sports?

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RagingSquirrel
 one year ago
Best ResponseYou've already chosen the best response.0Let's do (b) first. You have 2 choices on the survey 1. Basketball 2.Hockey 4 people liked both sports. That means that 4 people circled both. Remove those from your totals. Now, you have 15 pure hockey fans and 8 pure basketball fans. Add 8 to 15 and you have 23 students who only like one sport. Now let's do (a). You have a total of 35 circles on your list. 8 of them are from the 4 "both" people. Remove those. Now there's 27 circles. Remember how there are 23 students who like one sport? Remove those. You now have 4 people who didn't circle anything.
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