Posted by Jennifer on Saturday, October 15, 2011 at 12:22pm.
I. Use Chebyshev’s theorem to find what percent of the values will fall between 183 and 227 for a data set with a mean of 205 and standard deviation of 11.
II. Use the Empirical Rule to find what two values 99.7% of the data will fall between for a data set with a mean of 297 and standard deviation of 18.

Stats  PsyDAG, Saturday, October 15, 2011 at 12:54pm
1. Z = (scoremean)/SD
Find the Z scores and apply your theorem.
2. 99.7% fall between Z scores of ± 3.
Use the equation above.

Stats  Jennifer, Saturday, October 15, 2011 at 3:22pm
1. Z = (s205)/11 = 205/11 = 18.63???
This one confuses me
2. I have no idea how to do this....
Please help!!

Stats  PsyDAG, Sunday, October 16, 2011 at 11:17pm
1. Z = (183205)/11 = 22/11 = 2
Z = (227205)/11 = ?
Apply the theorem.
2. 3 = (score297)/18
3 = (score297)/18
Solve for each score.

Stats  Jennifer, Monday, October 17, 2011 at 12:07am
okay so the first would be 0.75 correct?
the second one would be
3 = 16.46
3 = 16.46
is this correct?
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