Probability And Statistics Worksheets Page 19
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42T
T
E
RY
HESE
XERCISES
A group of numbered cards contains three 3s, four 4s, and five 5s. Cards are
picked at random, one at a time, and then replaced. Find each probability.
1. P(3, then 5)
2. P(4, then odd number)
3. P(even, then not 4)
SPORTS
A baseball team has 10 pitchers, 3 catchers, 5 outfielders, and 7
infielders on its roster. Two players from this team will be chosen at random to
represent the league in a tour of Japan. Find each probability.
4. P(pitcher, then catcher)
5. P(outfielder, then infielder)
SURVEYS
A newspaper survey asked 100 men and 100 women whether they
planned to vote for a proposed tax increase. Twenty men and 40 women said
they are in support of the increase. A person from the survey is chosen at
random. Find each probability.
6. What is the probability that the person chosen is in support of the tax increase?
7. What is the probability that the person is a woman in support of the increase?
8. What is the probability that the person is a man who is against the increase?
P
E
RACTICE
XERCISES • For Extra Practice, see page 691.
A box contains 3 red counters, 4 yellow counters, 2 green counters, and 1 blue
counter. Counters are taken at random from the box, one at a time, and then
replaced. Find each probability.
9. P(red, then yellow)
10. P(blue, then green)
11. P(red, then not red)
A drawer contains 2 pairs of black socks, 3 pairs of brown socks, a pair of beige
socks, and 6 pairs of white socks. One sock at a time is taken at random from the
drawer and not replaced. Find each probability.
12. P(black, then black)
13. P(white, then black)
14. P(beige, then white)
A billboard says “EAT HERE NOW.” Two letters fall off, one after the other.
15. What is the probability that both letters are vowels?
16. What is the probability that the first letter is an E, and the second letter is not
an E?
17. You are given one ticket each to two soccer games at a
stadium with 48,000 seats. What is the probability you will sit
in Section D in the first game, and then Section A in the
second game, if Section D has 4000 seats and Section A has
3000 seats?
SCHEDULING
Liu and Michi plan to sign up for a drawing class
next term. Drawing is offered during the first 4 periods of the day,
and students are assigned randomly to classes.
18. What is the probability that Liu and Michi will have drawing
together?
Maracana Stadium, Brazil
19. What is the probability that both students will have drawing
during first period?
398
Chapter 9 Probability and Statistics
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education