Comparing Data and Variability

• Seventh graders tend to spend less time on homework than sixth graders.

• The sixth grade data has a larger mode number of hours than the seventh grade data.

• The sixth grade data has a larger maximum number of hours than the seventh grade data.

• The median number of hours for both grade levels is 8 hours.

Which student has the greater median test score?

• Amy

• Ed

Which dot plot has the greatest variability?

• A

• B

• C

• D

Which Shelter had the higher median visits?

• North

• South

• Cannot Be Determined

Which company had the higher median wait time?

• Dannette's Auto Repair

• Alphonso's Auto Repair

• Cannot Be Determined

Which company had the shortest wait time?

• Dannette's Auto Repair

• Alphonso's Auto Repair

• Cannot Be Determined

Which company had the longest wait time?

• Dannette's Auto Repair

• Alphonso's Auto Repair

• Cannot Be Determined

Which highway has the higher median wait time?

• I-80

• I-5

• Cannot Be Determined

Which highway will likely be the quickest?

• I-80 because more than 75% of the data is less than I-5 median wait time.

• I-5 because it has a lower minimum value.

• Cannot Be Determined

Which highway has a lower Interquartile Range?

• I-80

• I-5

• Cannot Be Determined