Posted by Tameka on .
I. Use Chebyshev’s theorem to find what percent of the values will fall between 156 and 276 for a data set with a mean of 216 and standard deviation of 12.
II. Use the Empirical Rule to find what two values 68% of the data will fall between for a data set with a mean of 219 and standard deviation of 20.

MathStatistics 
PsyDAG,
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
See your later post. 
MathStatistics 
Tameka,
Obviously, this is not a repost as I only posted this question once. So if someone else posted the same question, I have NO control over what they do.