Texas Instruments TI-84 Plus CE - Working with Statistics

42 Working with Probability and Statistics
Notes:
• With each rand execution, the TI-84 Plus CE generates the same random-
number sequence for a given seed value. The TI-84 Plus CE factory-set
seed value for rand is 0. To generate a different random-number
sequence, store any nonzero seed value to rand. To restore the factory-set
seed value, store 0 to rand, or reset the defaults by going to
y L 7:Reset....
• The seed value also affects randInt(, randNorm(, and randBin( instructions.
Working with Statistics
You can find statistics commands in the …menu. You can create lists of data,
then plot or analyze that data using the statistics commands.
You can use the following statistics functions:
Description Keys
Best fit equations (regressions) … ~ } †
Define and store up to three stat plot definitions y ,
Distributions y =
List-based statistical analysis y 9 ~ ~
Logistic and sine regression analysis … ~ } †
One- and two-variable analysis … ~ À and
… ~ Á
Statistical tests … ~ ~