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Stat 3011
Homework 3
Stat 3011: Homework 3
Due:
Tuesday, February 10th
Directions:
Same directions as always (they are also written on the homework website).
Assigned Exercises:
1. 5.2 (page 220)
2. Suppose a basketball player attempts 10 free throws.
(a) Write down the sample space for the possible number of free throws that the player
makes.
(b) Let
A
be the event that the player makes an even number of free throws. Write down
A
.
(c) Let
B
be the event that the player makes fewer than 4 free throws. Write down
B
.
(d) Write down the complement of
B
,
B
c
.
(e) Write down the union of events
A
and
B
,
A
∪
B
.
(f) Write down the intersection of events
A
and
B
,
A
∩
B
.
3. There are 4 people in the Johnson family. When getting dressed in the morning, each of
them randomly selects a shirt from their own closet. In each closet, there are 2 plaid shirts
(P) and one striped (S) shirt. Suppose we observe the Johnsons on their way to the grocery
store.
(a) Construct the sample space for the shirt patterns of the 4 Johnsons.
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 Spring '09
 WANG,ZHAN

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