Question

Calculate standard deviation by direct method:
CI: 0-10 10-20 20-30 30-40 40-50

f:
4
3
6
5
2​

Answer 1

Answer:

1 2 3 4 5 6 7 8 9 10 Marks : 5 10 20 25 40 42 45 48 70 80 [Ans. σ = 23.07] 38. ... from the following distribution : C.I. : 0—10 10—20 20 —30 30—40 40—50 f : 8 13 16 8 5 [Ans. X ...

Explanation:

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Answer 2

Answer:

6

Explanation:

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