2007-01-11 06:40:55 · 4 answers · asked by M.K 2 in Science & Mathematics ➔ Mathematics
If the mean and the median are significantly different, the distribution of the data is said to be "skewed".
The standardised measure of skewness is:
(mean - mode) / (standard deviation).
2007-01-11 07:19:54 · answer #1 · answered by Anonymous · 0⤊ 1⤋
The median is the middle number in a set of numbers. So if you have a set of 11 numbers, the 6th number is the median.
The mean is the value of all of the numbers added together and divided by the number of data points.
They are not necessarily the same value.
You could have the data set:
1, 1, 1, 1, 10
The median is 1, and the mean is 14/5 which = 2.8
2007-01-11 14:48:22 · answer #2 · answered by Jess4352 5 · 0⤊ 0⤋
The median is the "middle" value when they are ranked in ascending or descending order. The mean is the arithmetic average. The median of 1,2, and 9 is 2. The mean is 4 (1+2+9=12, divided by 3 values = 4.)
2007-01-11 14:46:59 · answer #3 · answered by Michael H 2 · 1⤊ 0⤋
The median is the number dividing the higher half of your collection of numbers from the lower haqlf of your collection of numbers. The man is simply the average.
2007-01-11 14:45:59 · answer #4 · answered by Gene 7 · 1⤊ 0⤋