Asked by Jessie
Let X be a continuous random variable that is normally distributed with mean, µ = 15 and standard deviation, σ = 2.8, find a value xo that represents the 80th percentile 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 Z score related to that proportion, then insert the values into the equation above and solve for the score.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score related to that proportion, then insert the values into the equation above and solve for the score.
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