Probabilities for the Normal Distribution with the TI-83

A set of statistics about L1 will appear. The mean, , is at the top of the list. Scrolling down other statistics including Med (the median), Sx (sample standard deviation), (x (the population standard deviation), Q1 (the lower quartile) & Q3 (the upper quartile) will be displayed. The interquartile range = Q3–Q1. ................
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