Question

if we take the actual mean as the assumed mean,how much will sigma fidi be​

Answer 1

Answer:

same

Step-by-step explanation:

because if we take actual mean in place of assumed mean the answer will be same

Answer 2

Answer:

Equal

Step-by-step explanation:

Concept :

Actual mean  = ∑$f_{i} d_{i}$ / ∑$f_{i}$

Assumed mean = a + ∑$f_{i} d_{i}$ / ∑$f_{i}$

Solution:

here the summation of   ∑$f_{i} d_{i}$ will be the same as in assumed mean is only having a that is equal to the middle value of the data frequency but there is no change in  ∑$f_{i} d_{i}$.

∴ There will be no difference between ∑$f_{i} d_{i}$ of actual mean and assumed mean

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