QUIZ #1 30 minutes.

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QUIZ #1 30 minutes

Lesson #5: Probability Distributions Accel Precalculus Unit #1: Data Analysis Lesson #5: Probability Distributions EQ: What is a probability distribution and what criteria must be met to have a valid distribution?

Variable Terms to Recall: Random Variable Discrete Variables Continuous Variables

New Terms: Generally, statisticians use a capital letter to represent a random variable and a lower-case letter, to represent one of its values. For example,

As an example, P(X = 1) refers to the probability that the random variable X is equal to 1. Consider flipping 2 coins. Possible outcomes __________________

Complete the table below, which associates each outcome with its probability.

Probability Distribution --- a table or an equation that links each outcome of a statistical experiment with the probability of its occurrence. Probability Distributions describe what will probably happen instead of what will actually happen.

Requirements for a Probability Distribution:

A probability histogram is a histogram in which the horizontal axis corresponds to the value of the random variable and the vertical axis represents the probability of that value of the random variable.

Complete In Class Practice Problems Assignment: Practice Worksheet Probability Distributions