Calculate the standard deviation of the values 5, 10, 25, 30 and 50 by the assumed mean method, taking the ass

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Q. Calculate the standard deviation of the values 5, 10, 25, 30 and 50 by the assumed mean method, taking the assumed mean as 25.

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With $A = 25$ : $\sum d = -5$ , $\sum d^2 = 1275$ , so $\sigma = \sqrt{255 - 1} = \sqrt{254} = 15.937$ .

Step 1 — Deviations from the assumed mean $A = 25$ (with $d = X - A$ ).

Step 2 — Standard deviation. …

Q.Calculate the standard deviation of the values 5, 10, 25, 30 and 50 by the assumed mean method, taking the assumed mean as 25.