Page 18 - TB_6B
P. 18
Activity 2 Median
The lengths of Ricky’s and Jessica’s pencils are shown below.
Find the median of the lengths of pencils.
Unit: cmUnit: cm
14 15 12 19 13 10 17 15 18 19 11
The median is the middle number or the average of the two middle
numbers in a group of numbers, which are arranged in order.
The lengths of Ricky’s pencils: The lengths of Jessica’s pencils:
12, 13, 14, 15, 19 10, 11, 15, 17, 18, 19
Since there is an odd number Since there is an even number
of values, the number in the
middle, 14, is the median. of values, the average of the
two numbers in the middle,
15 17 = 16, is the median.
2
1 . Find the median. b. 15, 18, 10, 4, 27
a. 6, 8, 2, 5, 10, 8
c. 10, 3, 5, 8, 6, 9, 40 d. 140, 125, 170, 138, 120, 164
17. The Secret of Averages 7
The lengths of Ricky’s and Jessica’s pencils are shown below.
Find the median of the lengths of pencils.
Unit: cmUnit: cm
14 15 12 19 13 10 17 15 18 19 11
The median is the middle number or the average of the two middle
numbers in a group of numbers, which are arranged in order.
The lengths of Ricky’s pencils: The lengths of Jessica’s pencils:
12, 13, 14, 15, 19 10, 11, 15, 17, 18, 19
Since there is an odd number Since there is an even number
of values, the number in the
middle, 14, is the median. of values, the average of the
two numbers in the middle,
15 17 = 16, is the median.
2
1 . Find the median. b. 15, 18, 10, 4, 27
a. 6, 8, 2, 5, 10, 8
c. 10, 3, 5, 8, 6, 9, 40 d. 140, 125, 170, 138, 120, 164
17. The Secret of Averages 7
