Measures of Center and Graphs

The points scored by a basketball team in their first four games are listed:

68, 76, 64, 51

Which statement is FALSE if the team scores 64 points in the fifth game?

• The mean increases.

• The median is 64.

• The mode is 64.

A school club listed the attendance at its weekly meetings as follows:

12, 20, 15, 18, 12, 18, 10, 14

Which is true if you remove an 18 from the set of data?

• The median will decrease.

• There will be no mode.

• The mean will not change.

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

What is the mode?

• happening the most

• the average

• biggest - smallest

• the middle #

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24

• 36

• 39

• 52

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5

• 6

• 9

• 11

The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?

• 94 was the highest score on the test.

• More students received a 94 than any other score

• No student scored below a 94

• A score of 91 was slightly below average.

Given the set of data below, what would be the most meaningful measure?
1, 1, 1, 1, 1, 1, 1, 1, 1, 21

• Mean

• Median

• Mode

• Range

If you have two numbers in the middle, you should

• add them together and divide by two

• find the number in between the two

• find the mean of the two numbers

• all of these