Arrange the numbers from least to greatest 16 17 ? 20 21 24 Median is the number in the middle, since there is 6 numbers the the median is the missing value + 20. To find the missing value multiply 19 x 2 = 38 Now subtract 38 - 20= 18 The missing value is 18 The median is 18+20= 38... 38/2= 19
