Compare Population Using Measure of Center and Variability

Quiz
•
Mathematics
•
7th Grade
•
Hard
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
It is a measure of variability that you get when you subtract the smallest number in a set of data from the largest number.
mean
median
mode
range
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which measure of center should you use for the following data distribution?
mean
median
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
The scores for tests taken by Kesha and Robert are shown below. Each test is worth 20 points. Which statements below compare their data scores and are false statements? Select all that apply.
The median is a better representation of center than the mean for Robert’s test scores.
Kesha has a larger range than Robert.
The middle 50% of Robert’s scores are more consistent than the middle 50% of Kesha’s scores.
Robert's data has an outlier.
Kesha’s data should use the median and Robert should usethe mean to represent their data.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What comparisons can be made about the variability between first period and second period?
1st Period has a smaller range and larger IQR than period 2.
2nd Period has a smaller range and larger IQR than period 1.
1st Period should use IQR as its measure of variability because it has no outliers.
2nd Period should use range as its measure of variability because it has no outliers.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If Store B had 240 customers, how many would you expect to spend less than $30?
40
60
80
100
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the IQR of the 5 number summary.
10
15
19
22
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does the outlier in the data set below effect the mean?
it increases the mean
it decreases the mean
it has no effect on the mean
there is no outlier
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