SOLUTION: Suppose the average length of stay in a chronic disease hospital of a certain type of patient is 60 days with a standard deviation of 15. If it is reasonable to assume an approxima

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Question 1196411: Suppose the average length of stay in a chronic disease hospital of a certain type of patient is 60 days with a standard deviation of 15. If it is reasonable to assume an approximately normal distribution of lengths of stay,
Find the probability that a randomly selected patient from this group will have a length of stay: a) Greater than 70 days b) Less than 40 days
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.

The normal distribution curve is a bell shaped curve.

The question is to determine the area under normal distribution curve.


Go to website

https://onlinestatbook.com/2/calculators/normal_dist.html

and use free of charge online calculator specially intended for this purpose.


This way is the easiest and shortest way to get the answer and to learn the subject.


When you learn the subject enough,  you will be ready and may start learning other ways.