Skip to navigationAddition Rule 1: When two events, A and B, are mutually exclusive, the probability that A or B will occur is the sum of the probability of each event. Then the probability that either one of the events will occur is: P ( A or B ) = P ( A ) + P ( B )Search this site.

If A and B are two events in a probability experiment, then the probability that either one of the events will occur is: If A and B are two mutually exclusive events, P ( A ∩ B ) = 0. Help Teaching offers a selection of free biology worksheets and a selection that is exclusive to subscribers.Addition Rule in Probability. Could we use the special addition rule for determining the probability that for one draw from a deck of cards, that the card is either a Queen or a Heart? Why or why not?Free biology worksheets and answer keys are available from the Kids Know It Network and The Biology Corner, as of 2015. Use the special addition rule to determine the probability of drawing either a spade OR a heart from a standard deck of cards, on one draw from the deck.

You will receive your score and answers at the end. Each station has multiple choice answers.The Multiplication Rule of Probability: Definition & Examples - Quiz & Worksheet. In order to solve the problems, students will need to be able to distinguish between overlapping and mutually exclusive events.

Probability Addition Rules Letter Hunt Activity: This set of 10 stations lets students practice finding probabilities of different events using the Probability Addition Rule.

Khan academy probability