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Introduction to Probability Objective: find the probability of an event Homework: Probability Worksheet

Probability Probability is the likelihood of an event to occur: Probability is the likelihood of an event to occur: P(A) Experiment is the controlled and/or repeatable process Experiment is the controlled and/or repeatable process Event is a set of possible outcomes resulting from an experiment Event is a set of possible outcomes resulting from an experiment Outcome is a single specific possible result of an experiment Outcome is a single specific possible result of an experiment Examples: Tossing a coin – Heads, Tails Rolling a six sided die- 1, 2, 3, 4, 5, 6 Rolling a six sided die- 1, 2, 3, 4, 5, 6

Probability

Find the probability of selecting the following number from the numbers 1 – ) an even number 2.) a perfect square 3.) a factor of 50

Find the probability of selecting the following number from the numbers 1 – ) a prime number 5.) a multiple of 4

You randomly choose a marble from a bag of 10 black, 8 red, 4 white, & 6 blue. Find the probability of choosing the given marble. 1.) choosing white 2.) against choosing red

You randomly choose a marble from a bag of 10 black, 8 red, 4 white, & 6 blue. Find the probability of choosing the given marble. 3.) choosing blue 4.) against choosing black

The results of rolling a 6-sided die is shown. Find the experimental and theoretical probability. 1.) rolling a 52.) rolling an even # Roll # of occurrances Do Now:

The results of rolling a 6-sided die is shown. Find the experimental and theoretical probability. 3.) rolling a # less than 5 4.) rolling any # but a 3 Roll # of occurrances

Day 2: Probability Objective: Find the probability of an event to occur Homework: p811, #10-18

How many of each of the following can be found in a standard deck of cards? 1. Hearts 2. Spades 3. Clubs 4. Diamonds 5. Number Cards 6. Suits 7. Total in Deck 8. Red Cards 9. Black Cards

A card is randomly selected from a standard 52-card deck. Find the probability of drawing the given card. 1.) the king of diamonds 2.) a spade 3.) a 4

A card is randomly selected from a standard 52-card deck. Find the probability of drawing the given card. 4.) a king 5.) a red card 6.) a face card

Probability of Compound Events The union or intersection of two events is called a compound event. The union or intersection of two events is called a compound event. “or” : add “or” : add “and” : multiply “and” : multiply You must subtract repeated events You must subtract repeated events

A card is randomly drawn from a standard deck of 52 cards. Find the probability of drawing the indicated card. 1.) A heart or a diamond 2.) A spade or an even card

A card is randomly drawn from a standard deck of 52 cards. Find the probability of drawing the indicated card. 3.) A 6 or a 7 4.) An ace or a spade

You randomly choose a marble from a bag of 10 black, 8 red, 4 white, & 6 blue. Find the probability of choosing the given marble. 5.) choosing blue or black 6.) choosing red or white