Texas Instruments TI-80 User Manual - Page 166
Applications, of two dice, and the spin of a wheel.
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Probability Experiments: Coins, Dice, and Spinners The RANDINT( (random integer) function can be used for probability experiments. RANDINT( takes two arguments that define a set of integers from which to draw for the probability experiments below. Problem Procedure Using RANDINT( from the MATH PRB menu, devise probability experiments that employ the toss of a coin, the roll of two dice, and the spin of a wheel. For the coin tossing experiment, enter RANDINT(0,1) from the Home screen. 0 = tails and 1 = heads. Press ¸ repeatedly to generate the coin tosses. You can also write a simple program to display "heads" or "tails" for each coin toss. You can simulate the rolling of two dice by adding together the result from each die after a roll. On the Home screen, enter RANDINT(1,6)+RANDINT(1,6) and press ¸ repeatedly. You can simulate spinning a wheel with the numbers 1 to 100 using the RANDINT( function. Enter RANDINT(1,100) on the Home screen and press ¸ repeatedly. 11-2 Applications