Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (doc.brown):

In a population of test scores not known to be normally distributed, the mean is 50 and the standard deviation is 5. What proportion of the observations will fall in the interval from 40 to 60?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!