Measures of Center

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

A data set can have more than one mode

• True
• False

A data set can have more than one median?

• True
• False

What is the mode?

• # happening the most
• the average
• biggest - smallest
• the middle #

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

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.

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