Question

what is the formula of step deviation method??​

Answer 1

Step-by-step explanation:

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where m1, m2, m3, m4, ……, mn are the class marks of the class intervals and f1, f2, f3, f4, …….., fn are the frequencies of the corresponding classes. For class intervals of equal size of width l, let the assumed mean be a. This is the formula for determining the mean by step-deviation method.

Answer 2

Answer:

a + sumation fv/summation f into h