Define Mean and Median,and also the Difference..
The mean is the average of the numbers: A calculated "central" value of a set of numbers.
To calculate the mean, ust add up all the numbers, then divide by how many numbers there are.
Example: what is the mean of 2, 7 and 9?
Mean=(2 + 7 + 9) ÷ 3 = 18 ÷ 3 = 6
The Median of a data is the value of the middle observation, when the data is arranged in ascending or descending order. The median divides the data into two equal halves.
From the above definitions, you can easily differentiate these two.