Which is better mean and median?
Which is better mean and median?
“The mean is the one to use with symmetrically distributed data; otherwise, use the median.” … “However, when the sample size is large and does not include outliers, the mean score usually provides a better measure of central tendency. “(Then goes on to give an example of when the median is better.)
Can median and mean be equal?
Wikipedia says in relationship between mean and median: "If the distribution is symmetric then the mean is equal to the median and the distribution will have zero skewness. If, in addition, the distribution is unimodal, then the mean = median = mode.
How do you find the mean and median?
The mean (average) is found by adding all of the numbers together and dividing by the number of items in the set: 10 + 10 + 20 + 40 + 70 / 5 = 30. The median is found by ordering the set from lowest to highest and finding the exact middle. The median is just the middle number: 20.