To find your median first organize the numbers from least to greatest
78, 80, 82, 84, 86, 87, 87, 89, 94, 95
Now find the number(s) in the middle
78, 80, 82, 84, 86, 87, 87, 89, 94, 95
Now find the average between both numbers
86 + 87 = 173
173 / 2 = 86.5
86.5 is your answer