Question
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
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.
Related Questions
assume you have a data set from a normally distributed random variable. answer the following:
will...
The random variable X is uniformly distributed over the interval [θ,2θ]. The parameter θ is unknown...
Let X be a continuous random variable, uniformly distributed on some interval, and let Y = aX + b....