Normal distribution
Authored by Alexander Dürre
Mathematics
University
CCSS covered
Used 6+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adding 5 to all observations of a sample
increases the mean by 5
does not change the mean
decreases the mean by 5
changes the mean in an unpredictable way
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adding 5 to all observations of a sample
Increases the standard deviation by 5
does not change the standard deviation
multiplies the standard deviation by 5
changes the standard deviation in an unpredictable way
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Multiplying all observations by 2
increases the mean by 2
multiplies the mean by 2
does not change the mean
change the mean in an unpredictable way
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How large is the grey area?
0.1
0.5
1
2
Tags
CCSS.HSS.ID.A.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How large is the probability that a random variable with standard normal distribution is between 0 and 2?
approximately 0%
approximately 25%
approximately 48%
approximately 98%
Tags
CCSS.HSS.ID.A.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A person of our class is 1.65 m tall. We have a mean of 1.75 and a standard deviation of 0.05. What is the Z score of the height of the person?
-2
-1
0
1
Tags
CCSS.HSS.ID.A.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which normal distribution has the largest standard deviation?
A
B
C
D
Tags
CCSS.HSS.ID.A.3
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