false...not always
if u have an odd number of data values, then the median (middle number) will be one of the data values.
But...if u have an even number of data values, then the median will be 2 numbers.....add those 2 numbers together and divide by 2 and that will be ur median.
Example : 2,4,6,8.....median is 2 numbers (4 and 6)...add them and divide by 2 = 5...so ur median is 5 (not a data value)