Math Statistics
posted by Misty .
I am stuck can someone help me
19.2  21.1

3.18
\/25

I'm assuming your problem is this:
(19.2  21.1)/(3.18/√25)
Calculating:
(1.9)/(3.18/5) =
(1.9)/(0.636) =
2.99 (rounded to two decimal places)
I hope this helps and is what you were asking.