10,8, x, 6
The median of the list of positive integers above is 7. Which of the following could be the average (arithmetic mean) of the list?
Choose the correct choice from the following options
A) 3  B) 5.5  C) 6.25  D) 7  E) 7.5
GivenThe median of the list of positive integers above is 7   So arranging the numbers from lowest to highest, avg of 2 middle terms needs to be 7   so the sequence will be x 6 8 10   Lets say x = 4, which gives us mean = sum/4 = 7   7 is correct
<result>D</result>
10,8, x, 6
The median of the list of positive integers above is 7. Which of the following could be the average (arithmetic mean) of the list?