Texas Instruments TI-84 - Manual (Page 86)

Chapter 2: Math, Angle, and Test Operations 83
randBin( randBin( randBin( randBin(
randBin( (random Binomial) generates and displays a random integer from a specified
Binomial distribution. numtrials (number of trials) must be ‚ 1.
prob (probability of success)
must be ‚ 0 and  1. To generate a list of random numbers, specify an integer > 1 for
numsimulations (number of simulations); if not specified, the default is 1.
randBin(numtrials,prob[,numsimulations])
Note: The seed value stored to rand also affects randInt( , randNorm( , and randBin(
instructions.