Question

(a) The mean of the variates 2,4,6 and 8 is 54/11 and the frequencies of the first three varizes e 3,2
and 4 Find the frequency of the fourth variate​

Answer 1

Answer:

the 4 variate is 6 this may help you

Answer 2

Answer:

2

Step-by-step explanation:

So, let the missing frequency = x

Then Sum of All frequencies = ∑fi = 3+2+4+x = 9+x

∑fixi = 6+8+24+8x = 38+8x  

Mean = ∑fixi/∑fi

54/11 = 38+8x/9+x

Solve for 'x'

x=2

Hope it helps!

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