Measures of Center

The line plot shows the number of pets a group of students has. What is the balance point for this set of data?

• 3

• 4

• 5

• 6

Which 2 line plots shows a set of data with a balance point of 24?

• a

• b

• c

• d

Amber has 5 tests in Science this semester. Her scores on these tests are

93, 99, 83, 100. If she took a fifth test and received a 72, how would the mean and median be affected?

• The mean and median would both decrease

• The mean and median would both increase

• The mean would decrease, but the median would remain the same

• The median would decrease, but the mean would remain the same

Amber has 5 tests in Science this semester. Her scores on these tests are 93, 99, 83, 100, and 65. She was allowed to retake her lowest test to improve her grade. She scored 79 on the retake. HOw were the mean and median affected?

• The mean and median both increased

• The mean and median both decreased

• The mean increased and the median remained the same

• The median increased and the mean remained the same

After Devron read on Friday, his median increased. Which could be the number of minutes he read on Friday?

• 20

• 25

• 30

• 35