For two numbers a and b
⇒ AM = (a + b)/2
⇒ D = (x1 - xavg) + (x2 - xavg) + (x3 - xavg) ... + (x1 - xavg) = 0
𝑥avg = (xassumed avg + (Deviation/No. of elements))
Median of a finite list of numbers can be found by arranging all the observations from lowest value to highest value and picking the middle one.
Mode is the value that occurs most often