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In a continuous series, mean=24, the number of terms=10, and EFX=200+a find the value of a.

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In a continuous series, mean=24, the number of terms=10, and ∑FX=200+a find the value of a.


1 Answer


Given,

In a continuous series, mean (\(\overline x\)) = 24

The number of terms (N) = 10 and,

∑fx = 200 + a

To find the value of a,

By formula,

Mean (\(\overline x\)) = \(\frac{\sum_{fx}}N\)

or, 24 = \(\frac{200+a}{10}\)

or, 200 + a = 240

or, a = 240-200

or, a = 40

Therefore, the value of a = 40.

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