Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

the mean of a set of test scores is 86 and the standard deviation is 3. if there are 200 test scores in the data sample, how many of them were in the 86% to 89% range?

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!