Respuesta :

The median is the number in the middle of a list of numbers.

Since this list has an even amount of numbers, you take the 2 middle numbers, add it together, and divide by 2 to get the average value.

The middle values are 17 and 20, so you do:

17 + 20 = 37   now divide by 2

37/2 = 18.5

Answer:

18

Step-by-step explanation:

add them all and you get 144. there are 8 total numbers.

the formula for mean is sum of numbers/n (number of items added) this isbalso synonymous with average.

144/8= 18