Compute the variance and standard deviation for the followin

Compute the variance and standard deviation for the following population of scores.

1, 9, 8, 5, 7

Scores: 1, 3, 9, 3

Mean=(1+3+9+3)/4=16/4=4.

Mean=4.

SS=(1-4)^2+(3-4)^2+(9-4)^+(3-4)^2= 9+1+25+1=36.

SS=36.

Variance=SS/n= 36/4= 9

Standard Deviation= sqrt(variance)=sqrt(9)=3

SS=36

Variance= 9

Standard Deviation= 3