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categoryإحصاء
schoolبكالوريوس
event_available2026-07-15
السؤال
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Chapter 05, Section 5.2, Problem 06a
The following table lists certain values of x and their probabilities. Verify whether or not it represents a valid probability distribution.
X
P(x)
0
0.15
1
0.10
2
0.05
3
0.70
The table
a valid probability distribution.
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Chapter 05, Section 5.2, Problem 06b
The following table lists certain values of x and their probabilities. Verify whether or not it represents a valid probability distribution.
P)
0
0.34
1
0.30
2
0.18
3
0.14
The table
a valid probability distribution.
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Chapter 05, Section 5.2, Problem 07b
The following table gives the probability distribution of a discrete random variable x.
X
0
2
3
4
5
6
P(x) 0.13
0.19
0.29 0.16
0.11
0.08
0.04
Find P(x 2).
P(X ≤2)=
exact number, no tolerance
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ion
Chapter 05, Section 5.2, Problem 07d
The following table gives the probability distribution of a discrete random variable x.
I
0
1
2
3
4
5
6
L
ion
P(x)
0.13
0.18
0.30
0.15
0.10
0.07
0.07
2
ion
Find P(1 ≤x≤4).
tion
tion
P(1 ≤x≤4) L
tion
b
tion
exact number, no tolerance
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