Answers − Stem-and-leaf Diagram Median

1.

Following is a stem-and-leaf diagram, with the key

	2   |   1   2   3   4   8 3   |   0   6   7   8   8 4   |   1   4   4   5   5   6
	Key: 2 | 1 represents 21

Find the median

As there are 16 values, the median (midpoint) is between the 8th and 9th value in the stem-and-leaf diagram. The 8th value is 37 and the 9th value is 38. The midpoint between 37 and 38 is 37.5 So the median is 37.5

2.

Following is a stem-and-leaf diagram, with the key

	3   |   2   5   6   7 4   |   0   1   4   6   7   7 5   |   0   2   3   9 6   |   0   0
	Key: 3 | 2 represents 32

Find the median

As there are 16 values, the median (midpoint) is between the 8th and 9th value in the stem-and-leaf diagram. The 8th value is 46 and the 9th value is 47. The midpoint between 46 and 47 is 46.5 So the median is 46.5

3.

Following is a stem-and-leaf diagram, with the key

	1   |   2   7 2   |   0   2   3   4   6 3   |   2   4   5 4   |   4   5   8   9
	Key: 1 | 2 represents 12

Find the median

As there are 14 values, the median (midpoint) is between the 7th and 8th value in the stem-and-leaf diagram. The 7th value is 26 and the 8th value is 32. The midpoint between 26 and 32 is 29 So the median is 29

4.

Following is a stem-and-leaf diagram, with the key

	2   |   1   2   6   7   8 3   |   1   8 4   |   0   1   3   7 5   |   0   2   9
	Key: 2 | 1 represents 21

Find the median

As there are 14 values, the median (midpoint) is between the 7th and 8th value in the stem-and-leaf diagram. The 7th value is 38 and the 8th value is 40. The midpoint between 38 and 40 is 39 So the median is 39

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