90,88,88,87,84,95,90,80,98, and 100

(A) find the mean of these numbers

(B) find the median of these numbers

In order to find the median the 1st thing I would do is put the number in order

80,84,87,88,88,90,90,95,98,100

then cross them out Start with left then go the right and so on ...

until you get 1 number in the middle left (Since theirs 2 numbers in the middle add them up and divide by two) 88+90=178 178/2=89

Median = 89

Now in Order to find the mean add up all the numbers and divide by however many numbers their are

You should get 900 then divide by 10 because their were 10 numbers

So Median=89 & Mean=90