Scores on the Wechsler Adult Intelligence Scale for the 20 to 34 age group are approximately normally

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Scores on the Wechsler Adult Intelligence Scale for the 20 to 34 age group are approximately normally distributed with mean equal to 110 and standard deviation equal to 25. If we select 100 people at random, what is the probability that this group will have an average score of 125 or above?
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Mathematical Statistics With Applications In R

ISBN: 9780124171138

2nd Edition

Authors: Chris P. Tsokos, K.M. Ramachandran

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