Casio 330 - Manual (Page 249)

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(3) Configure the following settings on the dialog box.
• Replace: Yes (Indicates the ball is replaced before the next draw. If the ball is not
replaced, select “No”.)
• A: 10, B: 20, C: 30 (Leaver other letters set to zero.)
• Number of trials: 50
(4) Tap [OK].
• The result will appear in the Probability window.
2-12-6
Using Probability