Find the variance for the set of data: 24, 31, 16, 22,22.
2 answers
is it 22
X = {24,31,16,22,22}
µ(X) = 23
X-µ = {1,8,-7,-1,-1}
n
∑(Xi-µ)^2 / (n-1)
i=1
∑(X-µ)^2 / 4 = (1+64+49+1+1)/5 = 116/4 = 29
µ(X) = 23
X-µ = {1,8,-7,-1,-1}
n
∑(Xi-µ)^2 / (n-1)
i=1
∑(X-µ)^2 / 4 = (1+64+49+1+1)/5 = 116/4 = 29
1 answer