1. Mutually Exclusive: P(not A) = 1- P(A) Complement Rule: P(A and B) = 0 P(A or B) = P(A) + P(B) - P(A and B) General Addition Rule: Conditional Probability: Statistically Independent: General Multiplication Rule: PROBABILITY RULES: Q 1 at (n+1)/4 Q 2 at (n+1)/2 (the median) Q 3 at 3(n+1)/4 IQR= Q 3 - Q 1 Empirical Rule: 68% within 1 standard deviation 95% within 2 standard deviations 99.7% within 3 standard deviations

2. P(X) n X! nX p(1-p) X n X ! ()!    Binomial Distribution Formulas General Discrete Random Variable Formulas E(X+Y) = E(X) + E(Y)

3. Normal Distribution Formulas