Question 977072
This is basically asking you the average, aka the "mean". The mean is when you add up all the scores and divide it by how many times Adam scored which is 5.
So first, write down Adam's scores. 
22, 22, 16, 24
Now you are looking for the fifth one, so it will be like a guess and check game. However, since you said the answer is 16 I plugged that in for Adam's fifth score.

So I did, 22+22+16+24+16 = 100 because I'm looking for the average or "mean".
Now, divide 100 by 5 because Adam scored 5 attempts.
100/5 = 20
The answer for Adam's fifth attempt was 16.