1. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
AIM: Independent and
Dependent Events
Do Now
A company that produces plastic cases currently uses
about ounces of plastic to manufacture a single case.
This represents of the plastic the factory used in their
previous cases. This reduction in the amount of plastic
required to make a case is the result of the company
developing newer, lighter plastics for their products. How
much less plastic do they use now to make a single case?
A
B
C
D
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2. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
Anticipatory Set
How do you determine whether an
event is independent or dependent?
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3. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
1 Three
girls and two boys volunteer to
represent their class at a school assembly.
the teacher selects one name and then
another from a bag containing the five
students' names. What is the probability
that both representatives will be girls?
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4. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
2
A
B
C
D
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5. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
3
A
B
C
D
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6. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
4
A C
B D
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7. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
5A refrigerator contains 12 orange drinks, 4
grape drinks, and 25 apple drinks. Ann is
first in the line for drinks. Mark is second.
What is the probability that Ann gets an
apple drink and Mark gets a grape drink, if
they are given drink at random?
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8. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
6 You
roll a number cube once. Then you roll
it again. What is the probability that you
get a 2 on the first roll and a number
greater than 4 on the second?
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9. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
7
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10. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
8
What is the probability of flipping a
coin and getting five heads in a row?
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11. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
Trade-A-Problem
1.) Create a problem similar to
today's examples.
2.) Trade your problem with another
group and solve their problem.
3.) Review their answer.
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12. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
Before You Leave
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13. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
Homework
Castle Assignment #7 due tomorrow
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14. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
AIM: Independent and
Dependent Events
Three girls and two boys volunteer to
represent their class at a school assembly.
the teacher selects one name and then
another from a bag containing the five
students' names. What is the probability
that both representatives will be girls?
14

15. Day 6 Independent Dependent Events Day 2.notebook April 02, 2013
AIM: Independent and
Dependent Events
You roll a number cube once. Then you roll
it again. What is the probability that you
get a 2 on the first roll and a number
greater than 4 on the second?
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