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ProbStats Chapter 4.1 Probability Distributions (Elementary Statistics) Flashcards | StudBud
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ProbStats Chapter 4.1 Probability Distributions (Elementary Statistics)
ProbStats Chapter 4.1 Probability Distributions (Elementary Statistics)
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StudBud Administration
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#RandomVariables #ProbabilityDistributions #ExpectedValue #StandardDeviation
Flashcards
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Questions
16
Answers
1
Identify the random variable as continuous or discrete.
Continuous
Discrete
2
Determine if the following table is a valid probability distribution. Be able to explain...
Yes, a probability distribution
No, not a probability distribution
3
Find the expected value (mean) of the probability distribution below.
1.21
2.16
1.47
2.94
4
Identify the random variable as continuous or discrete.
Discrete
Continuous
5
The shape of this distribution is
Roughly Uniform
Skewed Left
Skewed Right
Approximately Normal
6
Identify the random variable as continuous or discrete.
Discrete
Continuous
7
The shape of this distribution is
Roughly Uniform
Skewed Left
Skewed Right
Approximately Normal
8
Identify the random variable as continuous or discrete.
Continuous
Discrete
9
Determine if the following table is a valid probability distribution. Be able to explain...
No, not a probability distribution
Yes, a probability distribution
10
Identify the random variable as continuous or discrete.
Discrete
Continuous
11
Find the probability of choosing a random variable with a value of at least 1.
0.53
0.28
0.81
0.47
12
The mean of a probability distribution is often also called this...
Expected mean
Expected range
Expected deviation
Expected value
13
Identify the random variable as continuous or discrete.
Continuous
Discrete
14
Find the probability of choosing a random variable with a value less than 3.
0.13
0.87
0.4
1.00
15
Determine if the following table is a valid probability distribution. Be able to explain...
No, not a probability distribution
Yes, a probability distribution
16
Which is the correct formula for the mean of a probability distribution?
c
b
a
d
