Find the value of mean when - fi xi-50 and N-10-A- 10B- 15C- 5D- 20

The correct option is C 5Mean (x̅) = ∑ f_i x_i /N = 50/10 = 10 ...

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Find the value of mean when $\sum f_{i} x_{i} = 50$ and N = 10.

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\sum f_{i} x_{i}

If the value of $\sum f_{i} x_{i}$ = 199 and mean = 60, find the value of $\sum f_{i}$ ?

\sum f_{i} = 11, \sum f_{i} x_{i} = 2 p + 52

A

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∣ ∣ | a d j (A) | \cdot | A | \cdot A ∣ ∣ = | A |^{λ},

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