When using the mean: the variance or standard deviation. When using the median: the range or inter-quartile range.
A quartile is a given section in a range of data. To find the quartile, you must first find the median. Then find the "median of the median", using these to separate your data into sections, giving you a total of four sections of data.
The median can be calculated using the Median function. Assuming the values you wanted the median of were in cells B2 to B20, you could use the function like this: =MEDIAN(B2:B20)
Put all the numbers in order and the median is the number that is in the middle!
You cannot because the standard deviation is not related to the median.
Central tendency is measured by using the mean, median and mode of a set of numbers. Variation is measured by using the range, variance and standard deviation of a set of numbers.
"Finding the median of a group of numbers usually isn't very challenging"
-128 to 127
You cannot because the median of a distribution is not related to its standard deviation.
"How can I locate a person on a grid map?"
If you have between about 15 and 50 pieces of data, a stem-and-leaf plot is not tedious to make and will illustrate the distribution of the values. Once you have made a stem-and-leaf plot, it is easy to locate the median.
research is going on to develop a source code for median filtering using java