Statistics Exam 3 Review
Authored by Izzy Neely
Mathematics
University
CCSS covered
Used 3+ times
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31 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A _________ ________ is a numerical measure of the outcome of a probability event, so its value is determined by chance. (use X to denote this)
Tags
CCSS.HSF-LE.A.1B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A random variable that is discrete would be
finite or countable
infinite or uncountable
add up to zero
add up to one
Tags
CCSS.HSS.MD.A.3
CCSS.HSS.MD.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A random variable that is continuous would be
infinte or uncountable
finite or countable
add up to one
add up to zero
Tags
CCSS.7.SP.C.7A
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A ___________ ____________ ____________ provides the possible values of the random variable and their corresponding probabilities. (Ex. Flipping a coin twice, letting X= number of heads= HH, TH, HT, TT)
Tags
CCSS.HSS.MD.A.3
CCSS.HSS.MD.A.4
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Let P(x) be the probability that X=x, then,
summation of p(X) =1
0 ≤ p(X) ≤ 1
Tags
CCSS.7.SP.C.7B
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This formula is used to represent...
M(X) = ∑ x * P(x)
Mean of a discrete random variable
Mean of a random variable
Standard deviation of a random variable
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the experiment is repeated many times, as the number of repetitions increases, the mean value will approach
the mean
the standard deviation
the mode
none of the above
Tags
CCSS.HSS.MD.A.3
CCSS.HSS.MD.A.4
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