Question

what is the formula for standard deviation?​

Answer 1

Answer:

a +£fiui/£fi*h

a-assumed mean

£-summation

h- height of the class

I hope it helps u☺☺

Answer 2

FORMULA OF STANDARD DEVIATION IS:-

=>

$\frac{a + sigma \: fu}{f \times h}$

H=CLASS SIZE

F=FREQUENCY

U=X-A÷H

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