SOLUTION: Scores on the GRE​ (Graduate Record​ Examination) are normally distributed with a mean of 539 and a standard deviation of 113. Use the 68 dash 95 dash 99.7 Rule to fin
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Question 1131007: Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 539 and a standard deviation of 113. Use the 68 dash 95 dash 99.7 Rule to find the percentage of people taking the test who score below 426.
The percentage of people taking the test who score below 426 is what _____ %? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! z=(x-mean)/sd
=(426-539)/113=-1
z<-1 occurs with probability 16% by this rule.
68% in the center means 34% on each side, which means the tails are 16% on each side of abs (sd)=|1|
