1. Day 12 Theoretical Probability.notebook March 22, 2013
AIM: Theoretical Probability
Do Now
Sheila owns a successful hair salon that has many loyal
customers. The graph below shows her total weekly sales (in
hundreds) over a twelve week period of time.
Which equation below represents the total sales, s, for a given
week, w?
A s = 3.2w
B s = (1/12)w + 32
C s = (1/3.2)w
D s = 12w + 3.2
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2. Day 12 Theoretical Probability.notebook March 22, 2013
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3. Day 12 Theoretical Probability.notebook March 22, 2013
Anticipatory Set
The other day we completed an experiment involving rolling
two dice to find what the most frequently occurring sum would
be. Today we will find the theoretical probability of each sum
occurring.
1.) Based on the Fundamental Counting Principle, how many
possible outcomes can there be for rolling two six sided dice?
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4. Day 12 Theoretical Probability.notebook March 22, 2013
Theoretical Probability:
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5. Day 12 Theoretical Probability.notebook March 22, 2013
4.) Based on the theoretical probabilities of the sums, which
should be the most frequently occurring sum? Was this the same
result as your experiment? Explain why or why not.
Brainpop
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6. Day 12 Theoretical Probability.notebook March 22, 2013
1
A
B
C
D
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7. Day 12 Theoretical Probability.notebook March 22, 2013
2
A
B
C
D
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8. Day 12 Theoretical Probability.notebook March 22, 2013
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A C
B D
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9. Day 12 Theoretical Probability.notebook March 22, 2013
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A C
B D
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10. Day 12 Theoretical Probability.notebook March 22, 2013
5
A
B
C
D
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11. Day 12 Theoretical Probability.notebook March 22, 2013
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A C
B D
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A
B
C
D
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13. Day 12 Theoretical Probability.notebook March 22, 2013
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A C
B D
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14. Day 12 Theoretical Probability.notebook March 22, 2013
5.) A fair 1-6 number cube is rolled. Find the probability of rolling
a number greater than 1.
Fraction = ____ Decimal = ____ Percent = _____
6.) A standard deck of playing cards has 52 cards. These cards are
divided into four 13-card suits: hearts, clubs, spades, and
diamonds. Find the probability of drawing a spade?
Fraction = ____ Decimal = ____ Percent = _____
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15. Day 12 Theoretical Probability.notebook March 22, 2013
7.) A standard deck of playing cards has 52 cards. These cards are
divided into four 13-card suits: hearts, clubs, spades, and
diamonds. Find the probability of drawing a black queen.
Fraction = ____ Decimal = ____ Percent = _____
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16. Day 12 Theoretical Probability.notebook March 22, 2013
8.) In number 5, a fair number cube was used in the example.
What does fair mean in that example? Explain your answer.
9.) Draw an unbiased spinner with four sections below.
10.) Draw a biased spinner with four sections below.
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17. Day 12 Theoretical Probability.notebook March 22, 2013
Extra Practice
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18. Day 12 Theoretical Probability.notebook March 22, 2013
BEFORE YOU LEAVE
Describe the similarities and differences in your partner‛s
unbiased and biased spinners.
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19. Day 12 Theoretical Probability.notebook March 22, 2013
Before You Leave
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20. Day 12 Theoretical Probability.notebook March 22, 2013
Mr. Tjersland's Math 7
Homework: None
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21. Day 12 Theoretical Probability.notebook March 22, 2013
AIM: Theoretical Probability
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22. Day 12 Theoretical Probability.notebook March 22, 2013
AIM: Theoretical Probability
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23. Day 12 Theoretical Probability.notebook March 22, 2013
AIM: Theoretical Probability
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