
Mean Median Standard Deviation and Variance
Authored by Anthony Clark
Mathematics
12th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample standard deviation of Ervin's scores?
511.33
22.61
438.48
20.94
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The number of miles that Jenna cycled each week for a 7-week period is shown:
36, 42, 28, 52, 48, 36, 31
What is the median number of miles Jenna cycled?
24
36
39
52
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This data is normally distributed. What percent of the data is in the shaded region?
68%
95%
99.7%
50%
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which data set has the largest standard deviation?
Set 1
Set 2
Set 3
Set 4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?
0.53
0.41
0.35
0.22
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Order the dot plots from least to greatest standard deviation.
A, D, C, B
B, C, D, A
A, D, B, C
B, C, A, D
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