Question

If the standard deviation of no's 2,4,5 & 6
is a constant alpha & Then standard deviation of no's 4, 6, 7 & 8 is​

Answer 1

Answer:

Correct option is

B

2.58

Given data values are 4,6,8,10

Mean of the data is 44+6+8+10=428=7

Therefore standard deviation is 4−1(4−7)2+(6−7)2+(8−7)2+(10−7)2=320=2.58