Here,
Mean (\(\overline x\)) = \(\frac{\sum fx}N\)
Or, \(10=\frac{\sum fx}{40}\)
Or, ∑fx = 40 x 10
∴ ∑fx = 400 is the required answer
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if \(\overline x\) = 10 and N = 40, then find the value of ∑fx.
Here,
Mean (\(\overline x\)) = \(\frac{\sum fx}N\)
Or, \(10=\frac{\sum fx}{40}\)
Or, ∑fx = 40 x 10
∴ ∑fx = 400 is the required answer
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