Measures of Central Tendency

Find the mean:
28, 18, 19, 18, 17

• 20
• 18
• 11
• 19

What is the range of this data set?

7, 1, 6, 9, 4, 6, 2

• 8

• 7

• 6

• 5

What is the median of this data set?

9, 7, 9, 7, 3, 5, 9

• 9

• 3

• 4

• 7

What is the mode of this data set?

8, 6, 2, 8, 6, 6, 8, 6, 4

• 4

• 6

• 3

• 8

1, 2, 2, 3, 7 - What is the mode?

• 1

• 2

• 3

• 7

2, 4, 5, 7, 7 - What is the median?

• 2

• 4

• 5

• 7

4, 4, 4, 6, 7 - What is the range

• 4

• 7

• 3

• 6

The mode is the number ________________________.

• you see most

• you see least

• you don't see

• you see first

The mean is found by ___________________ all of the numbers and then _____________________ by the number of items.

• adding, subtracting

• adding, multiplying

• dividing, adding

• adding, dividing

The median is the __________________ number (after you put them in order).

• first

• middle

• last

• one you see most