The table shows the finish times of 30 runners in the 100-meter dash. Use the table to identify the inference that can be made by comparing the measures of center.
Comparing Data Sets Using Measures of Center

Quiz
•
Mathematics
•
7th Grade
•
Hard
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Every runner ran faster last year as compared to this year.
Most runners ran faster last year, on average, as compared to this year.
The runners ran faster this year, on average, as compared to last year.
Every runner ran faster this year as compared to last year.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If you compare the medians of each data set, who spends more time online?
Seventh graders
Eight graders
Both grades spend an equal amount of time online.
Impossible to determine form the data sets.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Coach Lantz recorded the number of shots on goal players made during two weeks of a lacrosse scrimmage. How much greater was week 2's mean than week 1's mean? Type your answer as a one-digit number without a label.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Brazil asks 7 classmates how many erasers and pens they carry in their bags. The mean number of erasers is 10. The mean number of pens is 4. What inference could Brazil make using this data?
Most of Brazil's classmates carry more pens than erasers in their bags.
All of Brazil's classmates carry more erasers than pens in their bags.
Most of Brazil's classmates carry more erasers than pens in their bags.
Most of Brazil's classmates carry similar amounts of erasers and pens in their bags.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What conclusion can Ms. Long make about the performance of her first- and second-period classes?
The first-period class had a higher median score than the second-period class.
The second-period class scores had a higher mean than the first-period class scores.
The first-period class scores had a greater range than the second-period class scores.
The second-period class scores had a greater mean absolute deviation than the first-period class scores.
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which measure of center should you use?
mean
median
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which set has a greater measure of center?
A
B
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