How to Find Confidence Intervals on a Ti-83?

Answer When calculating statistical data, it's nearly impossible to leave every stone unturned. Statistics are almost always based on a sample of all available data. For example, you can't record the heig... Read More »

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How to Find a Confidence Interval for the True Mean Using Excel 2007?

The confidence interval for a true mean represents the range above or below the survey mean in which the true average is likely to be, based on the data. For example, if you conduct a survey of a s... Read More »

Ear Training Intervals Tricks?

A solid understanding and facility with musical intervals is a crucial skill for musicians and composers to have and to master. Interval training can especially improve sight-reading and improvisat... Read More »