The area of an isosceles trapezoid is 77 square inches, the height measures 4 inches and the legs are 5 inches long. Find the lengths of the bases

A. For the students athletes sample:

i. The mean of the sample is 86.3.

ii. The median of the sample is 93.

B. For the not student athletes sample:

i. The mean of this sample is 87.7.

ii. The median is 90.5.

Step-by-step explanation:

A. For the students athletes sample:

Mean =

          =

         =

         = 86.3

The mean of the sample is 86.3.

Median is the mid value of the given sample when rearranged in a definite order.

140, 124, 114, 103, 100, 86, 65,62, 45, 21

Median =

             = 93

The median of the sample is 93.

B. For the not student athletes sample:

 Mean =

           =

           =  

          = 87.7

The mean of this sample is 87.7.

To determine the median, rearrange the given sample.

135, 126, 122, 110, 101, 80, 67, 62,43,31

Median =

             =

             = 90.5

The median is 90.5.