Statistics and Probability 2nd Sem Q1 week 3
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
Standards-aligned
Blescil Mabanag
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5 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
It is the measure of central location of a random variable and sometimes called the expected value or expectation.
mean
variance
standard deviation
variance
Tags
CCSS.HSS.MD.A.2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which symbol represents "mean of probability distribution"?
Σ
σ
μ
⍺
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
It describes the amount of spread, dispersion or variability of the item in a distribution.
mean
variance
median
frequency
Tags
CCSS.6.SP.A.3
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The variance of discrete probability distribution is given by the formula __________.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following does not belong to the steps in finding the variance of probability distribution in a random variable?
find the mean of the probability distribution
add the mean from each value of a random variable x
square the results of the difference between mean and random variable x
multiply the results obtained in squaring the difference between mean and random variable x by the corresponding probability
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