Page 15 - TB_6B
P. 15
Activity 1 Mean
The table on the right shows the Number of 6th Graders in Each Class
number of 6th graders in each class
at Kate’s school. Class ABCDE
Find the mean and range of the data.
Number of 24 26 23 27 25
Students
The mean is the average of a set of data.
To find the mean, divide the sum of the numbers in a set by the
number of items in the list.
Mean: 24 26 23 27 25 = 125 = 25
55
The range is the difference between the largest and the smallest
values in a set.
Range: 27 23 = 4
1 . Find the mean and range.
a. 3, 4, 6, 6, 6 b. 6, 7, 5, 10, 8, 6
3 4 6 6 6 =5 Mean:
Mean: 5 Range:
Range: 6 3 = 3
c. 14, 16, 20, 20, 24, 50 d. 10, 9, 7, 6, 8, 9, 105
Mean: Mean:
Range: Range:
4
The table on the right shows the Number of 6th Graders in Each Class
number of 6th graders in each class
at Kate’s school. Class ABCDE
Find the mean and range of the data.
Number of 24 26 23 27 25
Students
The mean is the average of a set of data.
To find the mean, divide the sum of the numbers in a set by the
number of items in the list.
Mean: 24 26 23 27 25 = 125 = 25
55
The range is the difference between the largest and the smallest
values in a set.
Range: 27 23 = 4
1 . Find the mean and range.
a. 3, 4, 6, 6, 6 b. 6, 7, 5, 10, 8, 6
3 4 6 6 6 =5 Mean:
Mean: 5 Range:
Range: 6 3 = 3
c. 14, 16, 20, 20, 24, 50 d. 10, 9, 7, 6, 8, 9, 105
Mean: Mean:
Range: Range:
4
