Mode
what is mode?
most common number or occur frequently.
how to find median?
1. Arrange from small to big
2. Then cancel first and end , repeat.
3. The middle number is the median.
How to find mean?
1. Add all number
2. Divide by how many numbers involve.
How to find range?
Big number - small number
3, 5, 2, 4, 5, 6, 5
the median is 4.
Not yet arrange.
4, 7, 9, 9, 9, 10, 11, 13
9
16, 15, 19, 17, 16, 14, 15
16
4, 7, 9, 9, 9, 10, 11, 5
8
2, 4, 4, 6, 7, 8, 4
6
2, 4, 4, 6, 7, 8, 4
the mean is 17.5
45, 54, 34, 45, 36, 40
45
45, 54, 34, 45, 36, 40, 39
40
39, 54, 34, 45, 36, 40, 39
41
4, 7, 9, 9, 9, 10, 11, 5
7
2, 4, 4, 6, 7, 8, 4, 3
the median is 6.5
not arrange in order.
5, 6, 8, 9, 5, 7, 6, 6, 7, 7
6 , 7
57, 56, 52, 51, 52, 54
53
11, 13, 12, 14, 15, 13, 13
13
16, 15, 19, 17, 16, 14, 15
5
2, 4, 4, 6, 7, 8, 4
the range is 4 - 2 = 2
wrong.
8 - 2 = 6
81, 90, 82, 99, 87, 91
No Mode
87, 82, 88, 89, 88, 82
87.5
2, 4, 4, 6, 7, 8, 4
5
87, 82, 88, 89, 88, 82
7
4, 8, 9, 16, 7
the mode is 16
No mode