Question

Which one of the following is least
If mean value of x, X=14.
A - sigma(X-12)²
B - sigma(X-10)²
C - sigma(X-15)²
D - sigma(X-14)²

Answer 1

Answer:

SIGMA (X-14)^2

Step-by-step explanation:

X= 14

Therefore ,

sigma {14-14)^2

=0 square

therefore it is least.

Answer 2

Out of the following given options, the formula which gives the least value is sigma(X-14)². So, option (D) is the correct choice.

• In the given question, the mean value of x is given by the formula sigma(X - a)².
• Now to get the minimum value of the mean, when X= 14, we have to put the value of a =14. So, sigma(X-14)² = sigma(14 -14)² = 0.
• This is the minimum value of the mean value of x.