SOLUTION: Scores on the GRE​ (Graduate Record​ Examination) are normally distributed with a mean of 552552 and a standard deviation of 149149. Use the 68 dash 95 dash 99.768-95-
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Question 1119659: Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 552552 and a standard deviation of 149149. Use the 68 dash 95 dash 99.768-95-99.7 Rule to find the percentage of people taking the test who score betweenbetween 254 and 850. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! z=(x-mean)/sd
z=(254-552)/149
z=-298/149=-2
z=(850-552)/149 and z=+2
Probability z is between -2 and +2 is 95% ANSWER
