Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest tenth. X
X
X - X
(X - X)2
1. 900 = 466.2 =
The mean is
2. 35 = -398.8 = 159,041.4 The variance is 99,667.2
3. 500 = 66.2 =
The standard deviation is
4. 300 = -133.8 =
n =
Σ X =
X =
Σ (X - X)2 = 398,668.6