the value of mean is 56.8 and sigmaxifi=2840 what is value of n
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Answered by
12
mean=sigma fixi by fi,
sigma-summation
fixi-product of sum of fi and sum of xi
fi- sum of fi
hope it will help you
20400/560
50
sigma-summation
fixi-product of sum of fi and sum of xi
fi- sum of fi
hope it will help you
20400/560
50
Answered by
7
Answer:
mean(X)=summation (xifi)÷fi(N)
56.8=2840÷(N)
N=2840÷56.8
answer:::::: N=50
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