Question

http://prntscr.com/7501fs

Answer 1

the mean is the average
add all the entries then divide by the number of entries
here you have 10 entries

Answer 2

the MEDIAN is the middle term = 40

Answer 3

I don't think this is a fair question

Answer 4

since using whole numbers then round 41.6 to 42

Answer 5

Ok, so you have ten numbers starting from 20 upto 65.

You first need to know the definition of the mean as another word for the "average"

Which is the sum of the numbers divided by the number of numbers,

Which in this case is 10.

Answer 6

As a general test taking strategy, you are expected to choose the answer choice closest to the actual answer ;-)