Consumer math
posted by yamilex .
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
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