Asked by jau
For a normal distribution with µ = 200 and ó = 50, what X values form the boundaries for the middle 60% of the distribution?
Answers
Answered by
PsyDAG
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (± .30 to mean) to find the Z score. Insert into equation and solve. Remember to double to represent each side.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (± .30 to mean) to find the Z score. Insert into equation and solve. Remember to double to represent each side.
Answered by
dillion
242.081, 157.919
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