Leslie M.

# Interpreting a bell curve questions

The bell curve I am given is exactly the same as the one shown on the website listed below...

http://www.csus.edu/indiv/b/brocks/Courses/EDS%20245/Handouts/Week%2010/Descrptive%20Statistics%20and%20the%20Normal%20Curve.pdf

Questions
A.)  About what percentage of the population falls within -1 and -2 standard deviations from the mean?  I am not sure if the answer would be 47.7% (34.13 + 13.59) or just 13.59% because the wording of the question is confusing me.

B.)  About what percentage of the population falls below -2 standard deviations from the mean?  I think the answer is about 2.3% (.13 + 2.14) but I am not fully sure.

Any help is greatly appreciated, thank you for you time!

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