Binomial Probability

Question 1

What conditions must be met to use Binomial Distribution?

Answer 1

Fixed number of trials, 2 possible outcomes (e.g. success and failure), the probability of success is the same each time, the outcome of one trial DOES NOT affect the other

Question 2

What is the equation?

Answer 2

P(X=r)=ⁿCᵣ x pʳ x (1-p)ⁿ⁻ʳ

Question 3

What do the letters mean in this - ⁿCᵣ x pʳ x (1-p)ⁿ⁻ʳ

Answer 3

n = total trials
r = total successful trials
p = probability of success