Question

Another measure of variation is variance, which equals 648-13-12-00-00_files/i0130000.jpg. Find the variance and standard deviation of the data set. Round to the nearest tenth.
7, 8, 4, 10, 6, 10
a.
variance = 4.6;
standard deviation = 2.3
c.
variance = 1.5;
standard deviation = 2.3
b.
variance = 1.5;
standard deviation = 2.1
d.
variance = 4.6;
standard deviation = 2.1

Answer 1

We can get this without much of any math at all. Standard deviation is the square root of the variance. So ifyou take the square root of all your possible variance answers, which one gives you the correct corresponding standard deviation?

Answer 2

d