I am new to the forum and really need so help before I have a test tomorrow. I have been going over my book and working through the problems but I am stuck on this problem. Would someone please help me? thank you very much for your time
From a study
average height of men =68in sd=2.7inch
average forearm length=18in sd 1inch r=0.80
a) what percentage of men have forearms which are 18 inches long to the nearest inch? for this problem I figured out 38%
b) of the men who are 68inches tall, what percentage have forearms which are 18 inches long to the nearest inch?
I know that the nearest inch refers to 17.5 and 18.5 and the answer in the back of the book is 60% however, I do not know how they solve the problem to get 60%