Introduction to Mean Median and Mode

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.
12, 5, 9, 18, 22, 25, 5

• 9

• 8

• 12

• 18

Find the mean.
90, 100, 95, 85, 60, 80

• 85

• 84

• 86

• 90

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

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

• True

• False

What is the definition of the mean?

• Add all the numbers together and divide by the number in the set.

• The middle number after the numbers have been put in order from least to greatest.

• The difference between the highest and lowest numbers

• The number that occurs the most often.

What is the definition of median?

• Add the numbers together and then divide by the number in the set.

• The difference between the largest and smallest number.

• The number in the middle when the numbers are in order from least to greatest.

• The number that appears most often.

What is the definition of mode?

• The average

• The number that appears most often.

• The largest number - the smallest number

• The number in the middle.

What is the first thing you should do before finding the median or the mode?

• Start crossing numbers off

• Put numbers in order from least to greatest

• List the numbers how they are

• Look for repeats