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Summary Stats from the TI-83/84

Summary Stats from the TI-83/84. Press STAT, Enter (for EDIT) If there are old data under L1: Press the up arrow, then CLEAR, ENTER Enter data values in L1 one at a time, pressing ENTER after each.

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Summary Stats from the TI-83/84

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  1. Summary Stats from the TI-83/84 • Press STAT, Enter (for EDIT) • If there are old data under L1: • Press the up arrow, then CLEAR, ENTER • Enter data values in L1 one at a time, pressing ENTER after each. • If you make an error, use the up or down arrows to highlight the error, then enter the correct value. Use the arrows to get to the bottom of the list for the next value, if necessary. • Be sure to press ENTER after the last data value.

  2. Summary Stats from the TI-83/84 • Press STAT, Right Arrow (for CALC), ENTER • Press ENTER (for 1-Var Stats) • Press ENTER again • Read results • The Standard Deviation is labeled Sx

  3. Calculating r with the TI-83/84 • The first time you do this: • Press 2nd, CATALOG (above 0) • Scroll down to DiagnosticOn • Press ENTER, ENTER • Read “Done” • Your calculator will remember this setting even when turned off

  4. Calculating r with the TI-83/84 • Press STAT, ENTER • If there are old values in L1: • Highlight L1, press CLEAR, then ENTER • If there are old values in L2: • Highlight L2, press CLEAR, then ENTER • Enter predictor (x) values in L1 • Enter response (y) values in L2 • Pairs must line up • There must be the same number of predictor and response values

  5. Calculating r with the TI-83/84 • Press STAT, > (to CALC) • Scroll down to LinReg(ax+b), press ENTER, ENTER • Read r at bottom of screen

  6. Re-Expression with the TI-83/84 • Most common re-expressions are built in. • To see what’s available, try • STAT • CALC • Scroll down to see • 5:QuadReg • 6:CubicReg • 9:LnReg • 0:ExpReg • A:PwrReg

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