Probability And Statistics Worksheets Page 16
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42GAMES
You spin the spinner shown. Find
each probability.
10
1
2
9
16. spinning a 2 or an odd number
8
3
17. spinning an odd or an even number
4
7
18. spinning a multiple of 2 or a multiple of 3
6
5
CARD GAMES
To begin a game, the dealer
draws a card at random from a standard deck of playing cards.
19. Find the probability that the card is a 2, a 5, or a face card.
20. Find the probability the card is a 7, an 8, or a red card.
A card is drawn at random from a standard deck of playing cards. For each event,
1
estimate whether the probability is closer to 1,
, or 0.
2
21. P(red or face card)
22. P(2, 3, or 4)
23. P(black and face card)
24. P(black, heart, or 7)
PHOTOGRAPHY
A team photo album contains photos of the players by
themselves, the coaching staff by themselves, and the players and the coaches
together. The players are in 15 of the photos and the coaches are in 12 of the
photos. In 6 photos, the players and coaches appear together.
25. How many photos are in the album?
26. If you open the album at random to one of the team photos, what is the
probability that the photo shows only coaches?
E
P
E
XTENDED
RACTICE
XERCISES
WRITING MATH
27.
Suppose you roll a pair of dice. Why are rolling a multiple
of 6 and a multiple of 4 not mutually exclusive events?
28. A pair of dice is rolled. What is the probability that the sum of the numbers
is neither 5 nor a multiple of 2?
29.
SPORTS
Batting average is found by dividing hits by at-bats. In 1941, Ted
Williams batted over .400 when he got 185 hits in 456 official at-bats for an
average of .406. Suppose Ted Williams had 1 more at-bat in 1941. Based on
his performance all season, what would you estimate the probability of his
not getting a hit that time?
30.
CHAPTER INVESTIGATION
For each player you selected, the number of
hits (H) is equal to the sum of the singles (S), doubles (2B), triples (3B), and
home runs (HR). Since the number of singles is not usually reported as a
separate statistic, calculate the number of singles (S) for each player
using the formula: H
(2B
3B
HR)
S. You may want to use a
computer spreadsheet.
M
R
E
IXED
EVIEW
XERCISES
Evaluate each expression when a
5 and b
4. (Lesson 1-8)
2
2
2
2
3
3
2
31. a
b
32. a
b
33. ab
34. a
b
2
2
2
3
2
2
2
35. a(a
b
)
36. ab ab
37. a
b
38. (a
b
)
2
2
2
2
2
2
2
39. (a
)(b
)(a
)
40. a
b(ab)
41.
(b
)
42. ( b)
395
Lesson 9-3 Compound Events
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