
Probability of Simple Events
Presentation
•
Mathematics
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11th - 12th Grade
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Medium
+1
Standards-aligned
Elizabeth Borres
Used 130+ times
FREE Resource
17 Slides • 8 Questions
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Probability of Simple Events
Ph-USA Guru
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At the end of the lesson, students will:
be able to find the probability of a simple event.
be able to understand the distinction between simple events and compound events.
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Probability of Simple Events Vocabulary
Outcome – one possible result of a probability.
Sample Space – the list of possible outcomes for a probability event.
Random – outcomes that occur at random if each outcome is equally likely to occur.
Simple Event – a specific outcome or type of outcome.
Complementary Events – the events of one outcome happening and that outcomes not happening are complimentary; the sum of the probabilities of complementary events is 1.
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Real World Example:
Best Buy is having an IPOD giveaway. They put all the IPOD Shuffles in a bag.
Customers may choose an IPOD without looking at the color. Inside the bag are 4 red, 7 green, 6 pink, 2 black, 4 blue, and 5 purple IPODS.
If Tracy chooses one IPOD at random, what is the probability she will choose an green IPOD?
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Real World Example:
If Tracy chooses one IPOD at random, what is the probability she will choose an orange IPODS?
How many orange IPODs are there?
What is the total number of IPODS?
P(orange) = 4/20 = 2/10 = 1/5 or 20%
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What is a PROBABILITY?
Probability is the chance that some event will happen.
It is the ratio of the number of ways a certain event can occur to the number of possible outcomes.
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Poll
Do you have any question(s)?
If yes, please type your question in the chat box or unmute yourself.
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Multiple Choice
When you flip a coin, what is the probability of flipping a tail?
1/2
head/tail
25%
75%
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Key Concepts:
Probability is the chance that some event will happen.
It is the ratio of the number of ways a certain even can occur to the total number of possible outcomes
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Poll
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Multiple Choice
There are 52 cards in a deck of cards. Two colors: red and black. 4 suits: spades, clubs, hearts, and diamonds. Each suit has a 2-10, jack, queen, king, and ace (no jokers). What is the probability of drawing a card with a number on it?
9/52
1/2
9/13
3/4
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Multiple Select
What is the probability of spinning a 2 on the spinner?
1/2
1/3
1/8
1/4
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Multiple Choice
There are 15 girls and 15 boys in 8th period. If Terry randomly selects a member of 8th period, what is the probability that she will select a boy?
15/15
1/2
15/40
8/15
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Multiple Choice
What is the probability that you choose blue? *simplify your fraction*
5 green
6 yellow
8 blue
7 brown
8/26
4/13
8/25
1/3
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Multiple Choice
A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?
5/11
5/6
1/3
5
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Classwork:
Go to google classroom and click the link.
Probability of Simple Events
Ph-USA Guru
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