1. 345 = -82.5 = The mean is

2. 340 = -87.5 = The median is

3. 400 = -27.5 = The variance is

4. 625 = 197.5 = The standard deviation is

Σ X = _

X = _

Σ (X - X)2 = 54,225.0

n =

2. 340 = -87.5 = The median is

3. 400 = -27.5 = The variance is

4. 625 = 197.5 = The standard deviation is

Σ X = _

X = _

Σ (X - X)2 = 54,225.0

n =

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