Question

if we add 2to each data value then what happen median why give reason​

Answer 1

Answer:

Correct option is C)

If each observation is multiplied by 2, then mean(μ) will get doubled.

Now, variance =σ

2

=

n

(X−μ)

2

Now here both X and μ will be doubled, so the variance will become four times.

Thus, the new variance will be 4 times the older variance which is 4×5=20.

Hence, C is correct.

Solve any question of Statistics with:-

Answer 2

Answer:

four multiplied by 5=20