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Essential Questions
Today's
Key Vocabulary:• probability• oddsEQ: Ho
w do you find
the probability a
n event
will occur?
EQ: How do you f
ind the
odds in favor or a
gainst
an event occurrin
g?
EQ: How do you f
ind a
geometric probab
ility?
a) Find the probability of drawing a red queen.
b) Find the probability of not drawing a diamond.
c) Find the probability of drawing a card with a face value of at least 3.
For a play tryout, 10 students are reciting monologues. The order in which the students perform is randomly selected.
(a) What is the probability that the students audition in alphabetical order by last name?
(b) What is the probability that 2 of your 4 friends trying out will be the first two performers?
Find probabilities1
a) A factor of 150.
b) An even number greater than 70.
Number of outcomes NOT in ANumber of outcomes NOT in A
Number of outcomes in A
Number of outcomes NOT in A
Number of outcomes in A
2
A sixsided die is cast.
a) Find the odds in favor of rolling an odd number.
b) Find the odds against rolling a number that is a factor of 6.
(a) (b) (c)