Mathematics, 01.10.2019 21:30 jay5902
In a research sample of highschool students, the variable “number of fb friends” formed a normal distribution with a mean of 45 and a standard deviation of 16. valentina had 53 friends. what was her approximate percentile rank?
a) 31st
b) 53rd
c) 69th
d) 49th
Answers: 2
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In a research sample of highschool students, the variable “number of fb friends” formed a normal dis...
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