Answered

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There are 12 pupils in a class.
They are each asked whether they have a brother or a sister.
9 say they have a brother.
7 say they have a sister.
2 say they have neither.
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Fill in the Venn diagram
& = class of 12 pupils
B= pupils who have a brother
S= pupils who have a sister

Sagot :

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Answer:

Circle B: 3

Both circle B + S: 6

Circle S: 1

Outside of box: 2

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