Answer:
4
Step-by-step explanation:
first you put the numbers in order from least to greatest
1,1,1,1,2,2,2,4,12,13,15,15,15,16,16
next find the middle number(s)
1,1,1,1,2,2,2,<em>4</em>,12,13,15,15,15,16,16
the middle number is your median
*if you have 2 middle numbers just add the then divide it by 2 to find the median
