Answer:
4.19
Step-by-step explanation:
Find the mean:

Find the standard deviation:

624 divided by 5 is (and thats your answer)
3/5 is the same as 12/20 which is not red over total
It is 18 because it is a square so all the sides have to be the same so that would make it 18
Answer:
your answer would be 0.052