Statistics Screens for TI Graphing Calculators Button Button Allows you to: Select 1, then hit enter! Gives you: There are ____ lists available. To clear lists: Clear each entry individually or 2nd + 4 ENTER DO NOT EVER DELETE LISTS! Example #1 Enter the following data set into L1. 14 15 18 20 35 Record all of the statistical information from 1-Var Stats below. Calculate the IQR of the data set. Is the data value 35 an outlier? Justify your conclusion. STAT STAT Edit Lists Gives you all the statistical info you need for a specific list NOTE: L1 is the default. If you want to use a different list, you must type the list number in after you hit 1-Var Stats. EASY ACCESS: Use the 2nd function with the numbers 1-6. 6 Mean (average) Sum of all x values Sum of (x values squared) STANDARD DEVIATION with small pop. Standard Deviation with “mega” large pop. Number of data pieces Lower Extreme (low data value) Quartile 1 (Lower Quartile) Median Quartile 3 (Upper Quartile) Upper Extreme (high data value)