Recommended calculators: - be sure it has statistic symbols for summing data, the mean and standard deviation.
Some reasonalbly priced suggestions include: TI-30Xa, TI-30XIIS, Casio fx-260, Sharp EL-W535B

Check one of these web sites if you need to download a manual for your calcuator:

• Texas Instruments
• TI83+  - read chapter 13 (specifically pp 383-384) on finding the other S_x value
• Casio
• Sharp

Bring your calculator to all classes.  You may also want to bring its manual for the first few weeks (especially on Day 4)

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