Use the table you constructed in the previous exercise. Recall that the mean of a data set is the sum of all values divided by the number of values in that set.
11.3
Practice makes perfect
Let's look at the table we constructed in the previous exercise.
A U.S. Figure Skater's Score
Judge
Technical Marks
Presentation Marks
Total Score
A
5.9
5.4
11.3
B
5.8
5.7
11.5
C
5.8
5.6
11.4
D
5.6
5.3
10.9
E
5.9
5.5
11.4
F
5.6
5.3
10.9
G
6.0
5.7
11.7
Let's look at the data set of total scores from judges.
11.3, 11.5, 11.4, 10.9, 11.4, 10.9, 11.7
The mean of a data set is calculated by finding the sum of all values in the set and then dividing by the number of values in the set. In this case, there are 7 values in the given set. Let's use them to calculate the mean!
