Complete the chart to find the mean, variance and standard deviation. Remember to use commas and round numbers to the nearest tenth.
Х
Х
X-X
x-x²
v
1.45
= -357.5 =
The mean is
2.340
= -62.5
The median is
3. 400
= -2.5
The variance is
4. 825
= 422.5 =
The standard deviation is
ΣΧ=
X=
(X-X)2 = 310,225.2 n=