A group of 9 players participated in a penalty shooting competition where each player had 10 attempts to score goals. The document lists each player's number of goals and puts them in order from lowest to highest. It then identifies that the most common number of goals scored was 5, which is called the mode. The median, or middle number, is 6. To find the mean, you add up all the scores and divide by the total number of players. In this case the mean, or average, is 6.

1. Penalty shooting
competition

2. Penalty shooting competition
Each person had 10 tries at shooting a penalty.
These are their scores...

3. Player Number of goals
Player 1 5
Player 2 5
Player 3 2
Player 4 8
Player 5 9
Player 6 5
Player 7 6
Player 8 6
Player 9 8

4. Now let’s put them in order from
the smallest number of goals to
the largest

5. Player Number of goals
Player 3 2
Player 6 5
Player 1 5
Player 2 5
Player 8 6
Player 7 6
Player 4 8
Player 10 8
Player 5 9

6. Number of goals
2 5 5 5 6 9886

7. Number of goals
2 5 5 5 6 9886
Which was the most common
number of goals scored? 5
This is called the MODE

8. Number of goals
2 5 5 5 6 9886
When they are all lined up in
order, which score is in the
middle? 6This is called the MEDIAN

9. The mean
If we took all those goals and shared them out
equally between the players, how many
would each player have scored?
2+5+5+5+6+6+8+8+9= 54
Divide this by the number of players:
54 ÷ 9 = 6 This is called the MEAN

10. • To find the mean, add up all the numbers,
then divide by the number of numbers.
• Try this one...
The mean

11. • Find the mean of 10, 12, 8
10 + 12 + 8 =
30 ÷ 3 =
30
10
The mean of 10, 12 and 8 is 3
What is the median of those three numbers?
10

12. Find the mean of these sets of
numbers
1. 3,5,5,7
2. 10,2,3,9,6
3. 7,7,6,4
4. 20,30,40,10
5. 3,2,2,4,3,5,2
5
6
6
25
3

13. Find the median of these sets of
numbers
1. 3,5,7,7,8
2. 10,2,3,9,4
3. 7,7,6,4,7
4. 20,30,60,40,10
5. 3,2,2,4,3,5,2
7
4
7
30
3