A and B are mutually exclusive.

A and B are mutually exclusive.

A and B are independent.

A and B are independent.

Probability:

Population Parameters:

Sample Parameters:

Discrete Random Variables:

Binomial Distributions:

The **Central Limit Theorem** states that if a sample is sufficiently large (N>30) the sample will have an approximately normal (mound shaped) distribution.

Therefore:

Chebyshev's Rule:

provides no information on the fraction of data included within 1 Std. Dev.

at least 3/4 of the data will fall within 2 Std. Dev. of the mean.

at least 7/8 of the data will fall within 2 Std. Dev. of the mean.

Empirical Rule:

will include approximately 68% of the data.

will include approximately 95% of the data.

will include approximately 99.7% of the data.