Asked by melba
                given x is a noramlly distributed random variable with a mean of 28 and a sd of 7 find p(x<28)
            
            
        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 related to the Z score.
However, since mean = 28, and in a normal distribution, the mean = median, and the median = 50th percentile, you would have your answer.
    
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.
However, since mean = 28, and in a normal distribution, the mean = median, and the median = 50th percentile, you would have your answer.
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