Math, asked by amansaraf514, 7 months ago

Calculate mean from the given data and write the

conclusion :

Marks Frequencies

4 5

6 10

9 20

10 7

15 8

Answers

Answered by biligiri

1

Step-by-step explanation:

mean = ∑fx / ∑f

∑fx = 20 + 60 + 180 + 70 + 120 = 450

∑f = 5+10+20+7+8 = 50

thetefore mean = ∑fx / ∑f = 450 / 50 = 9

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