Probability And Statistics Worksheets Page 20
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42Both spinners are spun. Find each probability.
20. P(red, red)
21. P(red, yellow)
22. P(green, not green)
A golf bag pocket contains 4 yellow golf balls, 3 white balls, 1 green ball, and 4 red
balls. You pull out one ball at a time, without replacing it. Find each probability.
23. P(red, then white, then yellow)
24. P(green, then red, then white)
25.
WRITING MATH
Explain the difference between events that are mutually
exclusive and those that are independent.
E
P
E
XTENDED
RACTICE
XERCISES
HISTORY
Suppose that it is 1944, and the Homestead Grays of the Negro
National League are playing the Birmingham Black Barons of the Negro
American League in a “best two out of three” series. Then suppose the Grays are
3
the favored team, and the probability they will win any individual game is
.
4
26. What is the probability that the Black Barons win a game?
27. What is the probability that the Grays win in two straight games?
28. What is the probability that the series goes for three games?
29. What is the probability that the Homestead Grays win the series?
30.
DATA FILE
Use the data on baseball on page 652. Suppose Davis had one
more official at-bat in the 1943 season and Wagner had one more official
at-bat in the 1948 season. What is the probability that both would have
gone hitless?
31.
CHAPTER INVESTIGATION
When a baseball player comes to bat, the
player can get a hit—either a single, a double, a triple or a home run—or the
player can walk, strike out, or make an out some other way. For each player
you have chosen, find the probability expressed as a percent that each event
will occur. For example, to find the probability that a player will walk, divide
the number of walks (BB) by the number of at bats (AB) and convert the
decimal to a percent. Use a spreadsheet or calculator.
M
R
E
IXED
EVIEW
XERCISES
Copy quadrilateral ABCD. Then draw its dilation image.
y
4
(Lesson 8-3)
A
D
32. The center of dilation is the origin and the scale factor is 4.
3
C
33. The center of dilation is the origin and the scale factor is
.
x
4
2
B
4
2
34. The center of dilation is point A and the scale factor is 2.5.
399
Lesson 9-4 Independent and Dependent Events
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