Answer:

Range =15.4

Sample Variance=39.742

Sample Deviation≈6.304

Solution:

Range: 19.1-3.7=15.4

Variance= x= 3.7+5.2+8.2+11.7+16.3+19.1

=64.2÷6

=10.7

V=(3.7-10.7) ^2+(5.2-10.7) ^2+(8.2-10.7) ^2+(11.7-10.7) ^2+(16.3-10.7) ^2+(19.1-10.7) /6-1

=-7.7^2+-5.5^2+-2.5^2+1.0^2+5.6^2+8.4^2/5

=59.29+30.25+6.25+1+31.36+70.56/5

=198.71÷5=39.742

Deviation:

√V

≈6.304