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13-3 Probability and odds.  Probability  The measure of the changes of an event happening  Sample Space  The set of all outcomes  Success  The desired.

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Presentation on theme: "13-3 Probability and odds.  Probability  The measure of the changes of an event happening  Sample Space  The set of all outcomes  Success  The desired."— Presentation transcript:

1 13-3 Probability and odds

2  Probability  The measure of the changes of an event happening  Sample Space  The set of all outcomes  Success  The desired outcome  Failure  Any other outcome rather than the desired outcome Vocabulary

3

4 52 cards in a deck 4 different suites 13 of each card 26 red/26 black Basic Knowledge…

5 1) A deck of cards has 52 cards total. What is the probability of pulling a heart?  How many hearts?  Probability of pulling a heart? 2) What would be the probability of not pulling a king?

6  A class contains 8 boys and 7 girls. What is the probability that a girl is called on for a question?  What is the probability that you role a 6 on a die?

7 There are 10 IPods in a basket. 3 of those IPods don’t work. If you selected 3 IPods at random, what is the probability that all three are defective? Hint: How many ‘groups of 3’ can you pick?

8 In Ms. K’s AFM Class there are 40 students total, 13 of which are currently failing. If 5 students are chosen at random, what is the probability that at least 1 is failing?

9  A box contains 3 tennis balls, 7 softballs, and 11 baseballs. One ball is chosen at random. What is the probability that it is not a baseball?  Of 7 kittens in a litter, 4 have tiger stripes. Three kittens are picked at random. Find the probability of choosing only ONE kitten with stripes.

10  The odds of a successful outcome of an event is the ratio of the probability of its success to the probability of its failure. Odds = P(S) P(F) Odds

11 7 Kittens in a litter and only 4 have stripes. What is the odds of picking one that is not striped.

12 Of 27 students in a class, 11 have blue eyes, 13 have brown eyes, and 3 have green eyes. If 3 students are chosen at random what are the odds of 2 having brown eyes and 1 having blue eyes?

13 Twelve male and 16 female students have been selected as candidates for college scholarships. If the awarded recipients are to be chosen at random, what are the odds that 3 will be male and 3 will be female?


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