Mean 1
6, 10,8, 9, 2
7
What is missing from this set of data if the mean is 9?
6, 10, ?, 9, 12
8
60, 65, 70, 55, 75
65
1 2 3 4 5
3
25 2 27 1 17
14.4
6, 8, 9, 4, 3, 6
6
14, 16, 7, 8, 9, 10, 6
9
85, 90, 88, 92, 84
87.8
10 20 30 40 50
30
9 16 76 2 81
36.8
13, 18, 16, 11, 16, 2, 8
12
12, 8, 12, 7, 6, 3, 11, 5
8
10 9 12 15 8
10.8
11 1 9 16 29
16.8
6 13 12 32 7
14
12, 6, 13, 18, 20, 7, 19, 9
13
10, 16, 11, 8, 14 , 16, 19, 24, 8
14
150 155 160 145 100
142
What is missing from this set of data if the mean is 33?
11 25 30 ? 58
41
What is missing from this set of data if the mean is 11?
4 24 ? 2 5
20
What is missing from this set of data if the mean is 11?
32, 3, ?, 20, 1, 8, 6, 6, 9, 9
16
10, 5, 9, 12, 81, 61, 43, 91
39
What is missing from this set of data if the mean is 4?
? 4 2 5 6
3
10 28 8 25 13
16.8
85 50 4 6 5
30