Review - aveeparker

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Transcript Review - aveeparker

Chapter 9 Review
Homework Answers p. 400-401
6.
5/12
12. 1/17
7.
1/8
13. 13/51
8.
9/35
14. 4/663
9.
2/87
25. B
11. 1/6
26. 1/52
Review
Find the value of seven factorial.
Answer: 5040
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Find the value of 3! · 8!.
Answer: 241,920
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Use the Fundamental Counting
Principle to find the total number of
outcomes from rolling a number cube,
tossing a penny, and rolling another
number cube.
Answer: 72
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Use the Fundamental Counting
Principle to find the total number of
outcomes from choosing cake or pie,
with whipped cream, ice cream or
chocolate syrup, served on a glass or
china plate.
Answer: 12
Review
Use the Fundamental Counting
Principle to find the total number of
outcomes from picking a number from 1
to 15 and a letter from the word
government.
Answer: 150
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The spinner at the right has an equal
chance of landing on each number.
Find P(odd number, then 4).
4
Answer: 49
Review
At the park in town, you can walk, ride a
bicycle, use a skateboard, or use inline
skates. One path goes along the river,
another goes through Antique Alley, and a
third goes along Arkansas road. How many
different ways can you use the park?
Answer: 12 ways
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How many ways can you pick a consonant from the
word PARKER, pick a card from a deck of 52 cards,
and a vowel from the word AUSTIN?
Answer: 624
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How many possibilities are there when 11
things are taken 5 at a time?
Answer: 55,440
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How many 5-digit zip codes can be created if
no digit can be repeated?
Answer: 30,240
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20 dogs are entered in a dog show. In how
many ways can win (1st), place (2nd), and
show (3rd) be awarded?
Answer: 6840
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What is the probability of hamburgers being a
student’s favorite after game food if 85 students out
of 150 chose it?
17
Answer:
30
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If
17
30
of students chose hamburgers, how many of
the 900 students in the school would you expect to
choose hamburgers as their favorite?
Answer: 510 students
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A coin is tossed 14 times. It lands on heads
8 times and tails 6 times.
What is the theoretical probability of it landing
on heads?
What is the experimental probability of it
landing on heads?
Answer: ½, 4/7
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8 + (24 – 16 + 1)2
Answer: 89
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25.63 L = ________ kL
Answer: 0.02563
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3a2 + 5d2 = _____, if a = 7 and d = 2
Answer: 167
Constructed Response
Bill has a bag of marbles that includes 6 blue
marbles, 7 clear marbles, 8 green marbles, and 4
steelies. Assume the marbles are randomly
distributed in the bag.
Suppose Bill’s son selects 3 marbles from the bag.
What is the probability that he will select a blue
marble, then a steelie, and then another blue
marble?
P(blue, steelie, blue) =
1
Answer:
115
Constructed Response
Does the situation described in the previous
question represent a set of independent or
dependent events? Explain.
Answer: Dependent. The marbles aren’t replaced so the
totals go down. Therefore each time he picks a
marble, there are less in the bag.
End of Test
Review