Probability of Independent vs. Dependent Events lesson.notebook
Probability of
Independent &
Dependent Events
8th Grade Math
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Probability of Independent vs. Dependent Events lesson.notebook
TEKS for the Day
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Probability of Independent vs. Dependent Events lesson.notebook
Essential Question(s)
• How are ratios, rates and percents related?
• How is the relationship between ratios, rates and percentages used to solve problems?
• What can be inferred from the statistical representation of data?
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Probability of Independent vs. Dependent Events lesson.notebook
Let's watch a video on Independent and Dependent Events!!!
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Probability of Independent vs. Dependent Events lesson.notebook
New Vocabulary
Independent Event
­ Two or more events in which the outcome of one event does not affect the outcome of the other event (s).
Key words:
with replacement, puts back, returns Dependent Event
­ Two or more events in which the outcome of one event does affect the outcome of the other event(s).
Key words:
without replacement, does not put back,
eats it, keep it, etc. 5
Probability of Independent vs. Dependent Events lesson.notebook
Student Notes ­ Probability of Independent Events
1. Coach Thornton took the bus in the morning and back to his own neighborhood in the afternoon. In the morning, there were 4 women and 1 man on the bus before he got on, and in the afternoon 3 men and 9 women were on the bus. On both rides, he sat next to only one person. What is the probability that he did not sit next to a man? 2 events
Number of events: _________________
Expression: ________________
Answer: _________________
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Probability of Independent vs. Dependent Events lesson.notebook
2. Tiyah has 3 coins in her pocket. She pulls them from her pocket and they all fall on the floor. What is the probability that all three coins landed tails up?
3 events
Number of events: _________________
Expression: ________________
Answer: _________________
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Probability of Independent vs. Dependent Events lesson.notebook
Student Notes ­ Probability of Dependent Events
3. There are 3 red candies in a bag of multi­colored candies with a total of 10 candies in it. What is the probability of selecting two red candies consecutively, without replacement?
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Probability of Independent vs. Dependent Events lesson.notebook
4. You select a card at random from those below. Your first card has the letter M. Without replacing the M card, you select a second card. Find the probability that you select a card with the letter A after you select M.
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Probability of Independent vs. Dependent Events lesson.notebook
5. Miguel has a bag of M&Ms that he has almost finished. All that is left in the bag is three green, one yellow, two red, and four brown M&Ms. He is going to choose an M&M, eat it, and then choose another one. Fill in the statements below with the appropriate inequality sign.(<, >, =) =
A.
B.
______ <
______ C.
D.
>
______ >
______ 10
Probability of Independent vs. Dependent Events lesson.notebook
vs. Independent Events
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