Math, asked by malouvilla39, 28 days ago

what is the mean deviation of 18 19 20 21 frequency 5 10 40 45?

Answers

Answered by gyaneshwarsingh882

0

Answer:

Step-by-step explanation:

Xi f c.f ∣Xi−M∣ fi×∣Xi−M∣

10 7 7 20 140

15 3 10 15 45

20 8 18 10 80

25 5 23 5 25

30 6 29 (Median Class) 0 0

35 8 37 5 40

40 4 41 10 40

45 9 50 15 135

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