Mean, Median, Mode of 2, 4, 4, 4, 5, 5, 7, 9
For the data set {2, 4, 4, 4, 5, 5, 7, 9}: Mean = 5.00, Median = 4.5, Mode = 4, Range = 7, Standard Deviation = 2.00.
8 numbers loaded
Mean
5.625
45 ÷ 8
Median
5.5
avg of 2 middle values
Mode
7
appears 3×
Count (n)
8
Sum
45
Range
12
Min → Max
1 → 13
Variance
12.484375
Std Deviation
3.533324
Sorted (ascending)
1, 2, 4, 4, 7, 7, 7, 13
Frequency table
| Value | Count | Frequency |
|---|---|---|
| 1 | 1 | 12.5% |
| 2 | 1 | 12.5% |
| 4 | 2 | 25.0% |
| 7 | 3 | 37.5%mode |
| 13 | 1 | 12.5% |
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