Question

Hi there, is someone ableTo walk me through this question

Answer 1

xThe data is given 2,2,1,12,8.

1. The mean of the data is

`\bar{x}=(2+2+1+12+8)/(5)=(25)/(5)=5`

2. To determine the standard deviation .

Then substitute the values in the standard deviation formula,

`s=\sqrt[]{\frac{\Sigma(x-\bar{x})^2}{n-1}}=\sqrt[]{(92)/(5-1)}=4.8`

Hence the standard deviation is 4.8.