Median= 0,1,2,3,**4,5**,6,7,8,9

Here because there is even number of digits 4 and 5 are the median. But only a single number can be a median.

So here this is the formula = __1st median+2nd median __

2

4+5/2 = 9/2 = **4.5 **

So the median of the first ten whole numbers is 4.5