EOC Practice Question of the Day. CCGPS Geometry Day 74 (11-11-14) UNIT QUESTION: What connection...
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Transcript of EOC Practice Question of the Day. CCGPS Geometry Day 74 (11-11-14) UNIT QUESTION: What connection...
![Page 1: EOC Practice Question of the Day. CCGPS Geometry Day 74 (11-11-14) UNIT QUESTION: What connection does conditional probability have to independence? Standard:](https://reader036.fdocuments.in/reader036/viewer/2022062421/56649f455503460f94c67a3f/html5/thumbnails/1.jpg)
EOC Practice
Question of the Day
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CCGPS GeometryDay 74 (11-11-14)
UNIT QUESTION: What connection does conditional probability have to independence?Standard: MCC9-12.S.CP.1-7
Today’s Question:What is the difference between the intersection and the union of 2 events?Standard: MCC9-12.S.CP.1, 7
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Mutually Exclusive VS. Overlapping
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A compound event combines two or more events, using the word and or the word or.
Compound Probability
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If two or more events cannot occur at the same time they are termed mutually exclusive.
They have no common outcomes.
Overlapping events have at least one common outcome.
Also known as inclusive events.
Mutually Exclusive vs. Overlapping
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P(A or B) = P(A) + P(B)
Mutually Exclusive Formula
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OR
Means you ADD
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Find the probability that a girl’s favorite department store is Macy’s or Nordstrom.
Find the probability that a girl’s favorite store is not JC Penny’s.
Example 1:
Macy’s 0.25
Saks 0.20
Nordstrom 0.20
JC Penny’s 0.10
Bloomingdale’s
0.25
.25 .20 .45
.25 .20 .20 .25 .90
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Sum of Rolling 2 Dice1 2 3 4 5 6
1 2 3 4 5 6 7
2 3 4 5 6 7 8
3 4 5 6 7 8 9
4 5 6 7 8 9 10
5 6 7 8 9 10 11
6 7 8 9 10 11 12
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When rolling two dice find
P(sum 4 or sum 5)
Example 2:
1 2 3 4 5 6
1 2 3 4 5 6 7
2 3 4 5 6 7 8
3 4 5 6 7 8 9
4 5 6 7 8 9 10
5 6 7 8 9 10 11
6 7 8 9 10 11 12
3 436 36
736
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Deck of Cards
• 52 total
cards
• 4 Suits
• 13 cards in
each suit
• 3 Face cards
in each suit
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In a deck of cards, find
P(Queen or Ace)
Example 3:
4 452 52
2
13
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P(A or B)
P(A B) = P(A) + P(B) – P(A B)
Overlapping Events Formula
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Example 4:
Find the probability that a person will drink both.
A = drink coffee
B = drink soda
12151
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Find the P(A B)
A = band members
B = club members
Example 5:
2948
195 565 351200 1200 1200
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In a deck of cards find
P(King or Club)
Example 6:
4 13 152 52 52
4
13
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Find the P(picking a female or a person from Florida).
Example 7:
Female Male
FL 8 4
AL 6 3
GA 7 3
21 12 831 31 31
2531
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When rolling 2 dice, find P(an even sum or a number greater than 10).
Example 8:
1 2 3 4 5 6
1 2 3 4 5 6 7
2 3 4 5 6 7 8
3 4 5 6 7 8 9
4 5 6 7 8 9 10
5 6 7 8 9 10 11
6 7 8 9 10 11 12
18 3 136 36 36
59
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Find
Example 9: Complementary Events
( )P A B U
4751200
1948
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Example 10: Complementary Events
( )P A
A = plays volleyball
B = plays softball
What is the probability that a female does not play volleyball?
33 395454 214
227
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Mutually Exclusive
Practice WS
Use your notes to help you out.
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Using Venn Diagrams HW WS
Use your notes to help you out.