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January 30, 2015

January 30, 2015

Posted by **Sabrina** on Saturday, April 28, 2012 at 10:17pm.

- statistics -
**PsyDAG**, Sunday, April 29, 2012 at 11:26amThe new mean will be 25+ 50 = ?

The standard deviation will remain the same.

- statistics -
**Angi**, Monday, April 30, 2012 at 9:41amThe new mean is 75 (25 + 50); however the standard deviation stays at 5 because she adds the same amount of points to all grades, so the curve is just shifting up rather than changing shapes.

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