Question

If a variable takes values 0, 1, 2,., n with the frequencies 1, nc1,nc2,....,ncn, then their mean is

Answer 1

Answer:

mean = ( ∑( ncₓ * n)) / (∑ncₓ)

where n,x = 0 to n

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Step-by-step explanation:

total number = ∑ncₓ where x=0 to n

individual variable value = 0 to n

total value = ∑( ncₓ * n) where n,x = 0 to n

mean = total value / total Numbers

mean = ( ∑( ncₓ * n)) / (∑ncₓ)