Intro to Mean and Median

The MEDIAN is the number in the MIDDLE when the data is in ORDER. What is the MEDIAN:

8, 0, 4, 0, 3, 2, 8

• 0

• 2

• 3

• 4

• 8

Which statement is true about the data?

• the median is 6 and the mode is 7 and the range is 6

• The median is 7 and the range is 7

• The median is 6 and the mode is 1

Find the mean of these numbers:

4, 2, 5, 6, 3

• 2

• 5

• 4

• 6

What is the mean?

• 9

• 18

• 36

• 12

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

What is the median?

• The number in the middle.

• The greatest number - the least number

• The average

• The number that appears most often.

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

• 2.
• The smallest number
• The largest number
• The number of items in the set.

Dr. Dre is a dentist. He needs to report on the average number of cavities that his patients have.
1, 0, 1, 5, 0, 3, 4.  What is the average number of cavities?

• 14

• 2

• 7

• 1

Which number is not the mean, median or range of the data set 4, 3, 15, 11, 3, 8, 7, 5?

• 6

• 11

• 12

If you score 76, 85, 97, and 82 on your math tests, what would your average score be? 

• 82

• 90

• 85

• 88