Math, asked by Gurunewu1, 10 months ago

Please tell me the answer please please please please please please please

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Answered by pooja4614

0

class mark (xi)= 15

17.5

20

22.5

25

27.5

30

32.5

total frequency=157

xifi=600

647.5

640

450

350

247.5

150

32.5

total xifi=3117.5

therefore mean=total xifi/fi

=3117.5/157

=19.85

Rebelraja2261: hii

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