Measures of Center and Range

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

• 24

• 36

• 39

• 52

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

• 2

• The minimum

• The maximum

• The number of items

Find the median:
3, 5, 7, 4, 3, 1

• 3 and 4

• There isn't one

• 3.5

• 3

Find the mean of these numbers:
5,11,2,12,4,2

• 4.1

• 6

• 4.5

• 4

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

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

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

• True

• False

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

If a number is added to the set that is in the middle of the data, how does this affect the range?

• increase

• decrease

• stay the same

• both increase and decrease