Answer:

Range=52

Sample Variance≈276.995

Sample Deviation≈16.643

Solution:

Range: 100-48=52

Variance: x= 48+59+68+81+87+91+92+93+100

=719÷9

≈79.8

V: (48-79.8) ^2+(59-79.8) ^2+(68-79.8) ^2+(81-79.8) ^2+(83-79.8) ^2+(87-79.8) ^2+(91-79.8) ^2+(92-79.8) ^2+(93-79.8) ^2+(100-79.8) ^2

=-31.8^2+-20.8^2+-11.8^2+1.2^2+7.2^2+11.2^2+12.2^2+13.2^2+20.2^2

=1011.24+432.64+139.24+1.44+51.84+125.44+148.84+174.24+408.04

=2492.96÷9

≈276.995

Sample deviation: √V

≈16.643