Question

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 median is
3. 500 = 66.2 = The variance is 99,667.2
4. 300 = -133.8 = The standard deviation is


Σ X = _

X = _

Σ (X - X)2 = 398,668.6

Answer 1

900 = 466.2 = The mean is

Answer 2

And I have no idea what it is

Answer 3

lam not sure