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5. A researcher asked 100 seventh graders whether theyplay tennis or swim. Twenty-one play tennis, and30 swim. Fourteen play tennis and swim.(a) Draw a two-set Venn diagram that displays theseresults.(b) How many students play neither sport?

Sagot :

Problem

A researcher asked 100 seventh graders whether they

play tennis or swim. Twenty-one play tennis, and

30 swim. Fourteen play tennis and swim.

(a) Draw a two-set Venn diagram that displays these

results.

(b) How many students play neither sport?

Solution

The total of students for this case is n=100

We also know that 21 play tennis and 30 swin and 14 play both

Part a

Part b

For this case we can find the number of people who play neither sport with this formula:

100 - 16-14-7= 63

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