Measures of Central Tendency

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

• 4.1

• 6

• 4.5

• 4

What is the mode for this table of data?

• 3

• 1

• 13

• 15

For this table of data, what is the modal class?

• 0-<10

• 30-<40

• 20-<30

• 40-<50

For this grouped data, what is the mean?

• 20

• 25

• 27

• 30

Your basketball team plays 5 games.
Your team scores:
10 points in the first game,
3 points in the second game,
2 points in the third game,
5 points in the fourth game, and
0 points in the fifth game.
What was the mean number of points your team scored for all 5 games?

• 3 points

• 4 points

• 5 points

• 10 points

The table shows the result when three coins were tossed simultaneously 30 times. 
What is the mean? 

• 1

• 1.57

• 2.2

• 3

The table shows the number of people with the corresponding number of friends on Facebook.  What is the median? 

• 49.6

• 50

• 51

• 50.3

If the mean of a data set is 10, what is the missing piece of data? 
5, 4, 7, 15, 12, ___

• 7

• 17

• 20

• 16

What is the mode of the data set:
Black  Blue  Red
Pink  Black  Black
Gray  Green  Blue
Blue  Blue  Red
Yellow  Blue  Red

• Blue and Black

• Blue

• Red

• Black

For a data containing 15 items arranged in ascending order, what item is the median of the data

• 7th item

• 8th item

• 6th and 7th item 

• 7th and 8th item