Examining Data Sets Worksheet
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1
2Name:
Examining Data Sets
Find the Mean, Median, Interquartile Range and Mean Absolute Deviation of the set of
A n s w e r s
numbers. If possible round to the nearest tenth.
Ex) 3, 7, 5, 7, 9
6.2
7
4
1.8
Mean = 6.2
Number
3
5
7
7
9
Ex.
3, 5, 7, 7, 9
Median = 7
Distance 3.2 1.2 0.8 0.8 2.8
Q1 = 4
I.Q.R. = 4
3.2
2
3
1.4
1.
Q3 = 8
M.A.D. = 1.8
4.7
5
4
2.1
2.
1) 4, 2, 6, 2, 2
Mean = 3.2
Number
2
2
2
4
6
2, 2, 2, 4, 6
Median = 2
Distance 1.2 1.2 1.2 0.8 2.8
6.7 6.5
4
1.7
3.
Q1 = 2
I.Q.R. = 3
Q3 = 5
M.A.D. = 1.4
6.3
7
1
1
4.
2) 5, 9, 5, 2, 1, 6
Mean = 4.7
Number
1
2
5
5
6
9
5.9
6
3
1.6
5.
1, 2, 5, 5, 6, 9
Distance 3.7 2.7 0.3 0.3 1.3 4.3
Median = 5
Q1 = 2
I.Q.R. = 4
4
4
4
2
Q3 = 6
6.
M.A.D. = 2.1
4.6 4.5
6
2.9
7.
3) 7, 9, 4, 9, 5, 6
Mean = 6.7
Number
4
5
6
7
9
9
4, 5, 6, 7, 9, 9
Median = 6.5
Distance 2.7 1.7 0.7 0.3 2.3 2.3
Q1 = 5
I.Q.R. = 4
Q3 = 9
M.A.D. = 1.7
4) 6, 7, 7, 7, 7, 3, 7
Mean = 6.3
Number
3
6
7
7
7
7
7
3, 6, 7, 7, 7, 7, 7
Distance 3.3 0.3 0.7 0.7 0.7 0.7 0.7
Median = 7
Q1 = 6
I.Q.R. = 1
Q3 = 7
M.A.D. = 1
5) 5, 7, 6, 7, 3, 4, 9
Mean = 5.9
Number
3
4
5
6
7
7
9
3, 4, 5, 6, 7, 7, 9
Distance 2.9 1.9 0.9 0.1 1.1 1.1 3.1
Median = 6
Q1 = 4
I.Q.R. = 3
Q3 = 7
M.A.D. = 1.6
6) 1, 4, 9, 2, 6, 4, 1, 5
Mean = 4
Number
1
1
2
4
4
5
6
9
1, 1, 2, 4, 4, 5, 6, 9
Median = 4
Distance 3
3
2
0
0
1
2
5
Q1 = 1.5
I.Q.R. = 4
Q3 = 5.5
M.A.D. = 2
7) 1, 3, 1, 9, 2, 7, 6, 8
Mean = 4.6
Number
1
1
2
3
6
7
8
9
1, 1, 2, 3, 6, 7, 8, 9
Distance 3.6 3.6 2.6 1.6 1.4 2.4 3.4 4.4
Median = 4.5
Q1 = 1.5
I.Q.R. = 6
Q3 = 7.5
M.A.D. = 2.9
1-7
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9
Math
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