6.3 Review

Which box and whisker plot has the highest median?

• Top plot
• Bottom plot
• They are the same

Which city has a higher median?

• Millersburg
• Arcadia
• They are the same

What is the difference between the medians?

• 16
• 12
• 8
• 4

The table shows the finish times of 30 runners in the 100-meter dash. Which inference is true?

• The runners ran faster this year, on average, as compared to last year.

• Most runners ran faster last year, on average, as compared to this year.

• Every runner ran faster this year as compared to last year.

What inference can you draw from this survey?

• I can infer that most students in this school like pizza.

• I can infer that very few students like hamburgers.

• I can infer that their favorite is corn dogs.

• I can infer that most students in this school like hamburgers.

The following dot plots show the amount of time it takes each​ person, in a random​ sample, to complete two similar problems. Make a comparative inference about the two problems.

• The problems are equally challenging.

• Problem 2 is more difficult because it took students longer on average.

• Problem 1 is more difficult because it took students longer on average.

Group A and Group B were randomly sampled from the same population. What inference can you make?

• Group A has a higher median than Group B.

• Group B has a higher median than Group A.

Using the box plot, who spends more time in outdoor activity?

• Soccer players, because they have a greater range of active minutes outdoors.

• Basketball players, because they have a greater range of active minutes outdoors.

• Soccer players, because they have a greater median of minutes spent outdoors.

• Basketball players, because they have a greater median of minutes spent outdoors.

Maria records random speeds from three different Internet providers in the table. Which company offers the fastest mean downloading speed?

• CityNet

• Able Cable

• Tel-N-Net

• Impossible to determine from the information given

The following dot plots show the ages of two groups of tourists. Make a comparative inference based on the mean values. The mean for group 2 is?

• 46.5

• 47

• 47.5

• 48