intermediate algebra: ch.9.1 percents and probabilities

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Ch.9.1_PercentsAndProbabilities.notebook 1 March 13, 2012 Theoretical Probability of an event (E) P(E) = # of desired outcomes total # of outcomes Coin Flip P(tails) = Rolling 6sided Dice P(roll a 4) = P(roll an odd #) = Drawing Cards From a Standard Deck 52 total cards 4 suits (clubs, spades, hearts, and diamonds) 12 face cards (J, Q, K) 3 face cards per suit P(draw a 7) = P(draw a red card) = P(draw a club) = P(draw a black jack) =

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Page 1: Intermediate Algebra: Ch.9.1 Percents and Probabilities

Ch.9.1_PercentsAndProbabilities.notebook

1

March 13, 2012

Theoretical Probability of an event (E)

P(E) =  # of desired outcomestotal # of outcomes

Coin Flip

P(tails) = 

Rolling 6­sided Dice

P(roll a 4) = 

P(roll an odd #) = 

Drawing Cards From a Standard Deck­52 total cards­4 suits (clubs, spades, hearts, and diamonds)­12 face cards (J, Q, K)­3 face cards per suit

P(draw a 7) = 

P(draw a red card) = 

P(draw a club) = 

P(draw a black jack) = 

Page 2: Intermediate Algebra: Ch.9.1 Percents and Probabilities

Ch.9.1_PercentsAndProbabilities.notebook

2

March 13, 2012

Experimental Probability of an event (E)

There are 30 players on the Dunlap Lacrosse Team. 2 players are 18 years old, 8 players are 17, 6 players are 16, 7 players are 15, and 7 players are 14.

What is the probability that a randomly selected playeris 16 or older?

Derrick Rose has made 1102 of 1349 career free throws. What is the probability that he misses a free throw?How many free throws is he expected to make if he has 300 attempts this season?

Page 3: Intermediate Algebra: Ch.9.1 Percents and Probabilities

Ch.9.1_PercentsAndProbabilities.notebook

3

March 13, 2012

Fundamental Counting PrincipleJack has 6 pairs of shoes, 15 pairs of pants/shorts, and 22 shirts. How many DIFFERENT outfits can hecreate?

4 coins are flipped. How many different heads­tails combinations are possible?

ATM machines use PIN numbers for security. If eachPIN number is 4­digits long and only contains digits 0­9,how many unique PIN numbers exist?

Page 4: Intermediate Algebra: Ch.9.1 Percents and Probabilities

Ch.9.1_PercentsAndProbabilities.notebook

4

March 13, 2012

Two 6­sided dice are rolled. What is the probabilitythat the 2 numbers add up to 8?

What is the probability that thesum is an odd number?