Statistics: Mean, Median, Mode
What is the mean, median, mode of (8,-9,2,7,8)Answer
Calculate Mean (Average) denoted as μ
| μ = | Sum of your number Set |
| Total Numbers Entered |
| μ = | ΣXi |
| n |
| μ = | 8 - 9 + 2 + 7 + 8 |
| 5 |
| μ = | 16 |
| 5 |
μ = 3.2
Calculate the Median (Middle Value)
Since our number set contains 5 elements which is an odd number, our median number is determined as follows:
Number Set = (n1,n2,n3,n4,n5)
Median Number = Entry ½(n + 1)
Median Number = Entry ½(6)
Median Number = n3
Therefore, we sort our number set in ascending order and our median is entry 3 of our number set highlighted in red:
(-9,2,7,8,8)
Median = 7
Calculate the Mode - Highest Frequency Number
The highest frequency of occurence in our number set is 2 times by the following numbers in green:(-9,2,7,8,8)
Our mode is denoted as: 8
Mode = 8
