Question

calculate the mean of the following frequency
distribution by the Step-deviation Method:
X 15 20 25 30 35 40 45 50 55
F 5 8 11 20 23 18 13 3 1

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Answer 1

Answer:

Test the for convergence of the series 1 + 2

2

3

2 +

2

2

.4

2

3

2.5

2 +

2

2

.4

2

.6

2

3

2.5

2.7

2 + ....