Working with Probability

You can find probability features in the » PROB submenu.

Many probability features have Stat Wizards to help you enter the syntax.

Example:

To generate a set of five random integers between 10 and 25 (inclusive):

1.

Press », then press ~ until you highlight PROB.

2.

Press † until you highlight 5: randInt(, then [enter].

3.

Enter the lower integer, then [enter].

4.

Enter the upper integer, then [enter].

5.

Enter the number of integers (n), then [enter].

6.

Press [enter] to Paste.

7.

Press [enter] again to see the random set of integers.

Note:

•

With each rand execution, the TI-84 Plus CE Python generates the same random-number sequence for a given seed value. The TI-84 Plus CE Python 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... 2:Defaults....

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The seed value also affects randInt(, randNorm(, and randBin( instructions.