A Short Lesson on Probability By Mrs. GarciaMrs. Garcia.
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Transcript of A Short Lesson on Probability By Mrs. GarciaMrs. Garcia.
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A Short Lesson on Probability
By Mrs. Garcia
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What are the Chances?
A probability experiment is something that can happen in more than one way.
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The outcomes of an experiment are the ways it can happen.
The event is the particular outcome you are looking for.
6 10 12 52
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?H HT T H T T H
The Probability of an Event =
P(Event) = the number of ways it can happen
the number of possible outcomes
P(H+T) = 2 = 1 4 2
__ __
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B
A
B
AA
B14 12
35
25
14
Try these…a) b)
P(red)
P(blue)
P(yellow or blue)1
5
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What is the probability of getting 4 fives?
P(4 fives) =
CARDS
413
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What is the probability of getting an even number?
213
DICE
P(even) =
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What is the probability of rolling two coins and getting H first and then T?
P(H & then T) =
COINS
14
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What is the probability that you will get an A this marking period?
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About the Author
Hello, my name is Maria Garcia and I really enjoy working with computers. I also
find probability a fascinating subject. I hope you do too!
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