Question

what is the median of 12,13,14,15,10,20,89,45,78,45,698,867.

Answer 1

put them in increasing order
10,12,13,14,15,20,45,45,,78,89,698,867
given number of data are 12(even) hence,
median = {n/2 data + (n/2 + 1)data}/2 
Median = (6th data + 7th data)/2
Median = (20+45)/2 = 65/2 = 32.5

Answer 2

ascending order-10,12,13,14,15,20,45,45,78,89,698,867
than count how many number
there are 12 number ,so 12 is an even number,so the medians are also two
the half of twelve is 6 ,so count 6 numbers from both sides and write the 6th number and the answer is =20,45