Some calculators offer the use of calculating binomial probabilities. One such calculator is the Casio fx-991EX Classwiz which evaluates probability density functions and cumulative distribution functions.

In the first of the two videos that follow I demonstrate how the Casio fx-991EX Classwiz calculator evaluates probability density functions and in the second how to evaluate cumulative distribution functions.

Evaluating P(X=x) for X~B(n.p)

Binomial Probabilities on the Casio fx-991EX ClassWiz Calculator | ExamSolutions Maths Revision - youtube Video

Evaluating P(X≤x) for X~B(n,p)

Cumulative Binomial Probabilities on the Casio fx-991EX ClassWiz Calculator | ExamSolutions - youtube Video