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8_murik_8 [283]
3 years ago
9

Can someone help please???

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
7 0
A. 3.25 or 3 1/4
B. 2
C. .25 or 1/4
D. -.75 or -3/4
E. -2.25 or -2 1/4
F. -3.75 or -3 3/4
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20 people applied for a job. Everyone either has a school certificate or diploma or even both. If 14 have school certificates an
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Given:

Either has a school certificate or diploma or even both = 20 people

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The number of people who have a school certificate only.

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Let A be the set of people who have school certificates and B be the set of people who have diplomas.

According to the given information, we have

n(A)=14

n(B)=11

n(A\cup B)=20

We know that,

n(A\cup B)=n(A)+n(B)-n(A\cap B)

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5=n(A\cap B)

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n(A\cap B')=n(A)-n(A\cap B)

n(A\cap B')=14-5

n(A\cap B')=9

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