 Probability: the chance that a particular event will occur.  When do people use probability ◦ Investing in stocks ◦ Gambling ◦ Weather.

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Presentation transcript:

 Probability: the chance that a particular event will occur.  When do people use probability ◦ Investing in stocks ◦ Gambling ◦ Weather

 What is the probability that tomorrow will be Thursday?  What is the probability that tomorrow will be Monday?

 What is the probability that it will rain tomorrow?  What is the probability that you will find $5 today?

0 Will Not Happen 1 Will Happen

 What is the probability that you will get tails when you flip a coin?  Experiment: Flip a coin 100 times.  How many heads do you predict you will get?  How many tails do you predict you will get?

 Using what we learned from the coin flip experiment:  What is the probability that you will roll a 3 using a six-sided die?  What is the probability that you will roll a 6  What is the probability that you will get a 3 or a 6?

 What is the probability that you draw a 9 of hearts from the deck?  What is the probability that you draw a jack from the deck?  You draw a jack from the deck of cards. You leave the jack out of the deck, what is the probability that you will draw a jack the second time?

ColorFractionDecimalPercent Blue13/ % Green13/ % Brown6/ % Yellow10/ % Orange9/ % Red4/55.077%