Mean, Median, Mode, & Range

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 median?

• True
• False

A data set can have more than one mode

• True
• False

At Dunkin Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10

• 13
• 12
• 11
• 10

What is the range?

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

What is the mean?

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

Dr. Dre is a dentist. He needs to report on the mean of the number of cavities that his patients have.

1,0,1,5,6,3,4

• 3.33

• 2.85

• 3

• 3.5

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193
• 127
• 60
• 66

The scores awarded to 25 students for an assignment were as follows:
4  7  5  9  8  6  7  7  8  5  6  9  8    5  8  7  4  7  3  6  8  9  7  6  9
What is  the mode?

• 6
• 7
• 8
• 9

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

• 4.1
• 6
• 4.5
• 4