
Measures of Spread/Variability

Quiz
•
Mathematics
•
9th Grade
•
Medium
Dawn Williams
Used 2+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jessie is comparing the prices of meals at two different restaurants. She makes a dot plot for each of the restaurants showing the cost for each meal on the dinner menu. Which restaurant's data set would have a smaller standard deviation?
Restaurant A
Restaurant B
The variance is about the same.
2.
MULTIPLE SELECT QUESTION
1 min • 5 pts
Which of the following is a measure of spread, or variability?
(select all that apply)
Interquartile Range
Standard Deviation
Mean
Median
Range
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which summary statistic should be used to compare the two data sets and why?
The median and the interquartile range because they are normally distributed.
The median and the interquartile range because they are skewed.
The mean and the standard deviation because they are normally distributed.
The mean and the standard deviation because they are skewed.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which histogram would have a larger standard deviation?
Histogram A
Histogram C
They are about the same.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The double dot plots show the average wait times in minutes for two popular rides at an amusement park. Compare the measures of center and variation, which ride typically has a longer wait time?
No inference can be made from the graph.
Topsy Turvy
The wait times are the same for both rides.
Rocket Blast
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The dot plots compare the number of raffle tickets sold by boys and girls during a school fund-raiser. Which plot has an outlier?
Girls
Boys
Both Plots
Neither
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Compare the centers and spreads.
Math has a higher median (center) and a wider spread.
Math has a higher median (center) and a smaller spread.
Math has a lower median (center) and a smaller spread.
Math has a lower median (center) and a wider spread.
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