Random Variable and Probability Distribution, Mean and Variance
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
Standards-aligned
Anthony Clark
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In sampling distribution, the mean of the sample means is equal to the ______
population mean
population variance
sample mean
sample variance
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
It is a numerical quantity that is assigned to the outcome of an experiment.
random variable
variable
probability
probability distribution
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
It is the central or average of its corresponding probability mass function.
mean
variance
standard deviation
probability
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the mean outcome if a pair of die is rolled once?
1.5
2.5
3.5
4.5
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Find the mean of the probability distribution involving the random variable X that gives the number of heads that appear after tossing four coins once.
4
3
2
1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The probabilities that a printer produces 0,1,2, and 3 misprints are 42%, 28%, 18%, and 12% respectively. What is the mean value of the random variable?
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
These are two values that describe how scattered or spread out the scores are from the mean value of the random variable.
variance and standard deviation
mean and probability distribution
probability and statistics
mean and variance
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