Question

Which of the following is the median of the data set? 15 20 20 25 30 35 40 40 45 50 55(1) 28(2) 30(3) 32(4) 34

Answer 1

Median: The media is the middle number in a list of values. If there is an even number of values (so there is no middle number) then average the middle two values together.

so:

$set\colon\mleft\lbrace15,20,20,25,30,35,40,40,45,50,55\mright\rbrace$

From the data set, we can conclude that the middle number (median) is:

$35$