Question

the mean of a data is 25.5 and sigma xifi = 1265 find sigma fi =?​

Answer 1

Answer:

sigma fixing /fi = 1265/26.5 49.60

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Answer 2

Answer:

Step-by-step explanation:

We know Mean = ∑xifi / ∑fi

=> 25.5 = 1265/∑fi

=> ∑fi = 1265 / 25.5 = 49.61

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