The average IQ in a population is 100 with standard deviation 15 (by definition, IQ is normalized so this is the case). What is the probability that a randomly selected group of 100 people has an average IQ above 115?

The average IQ in a population is 100 with standard deviation 15 (by definition, IQ is

normalized so this is the case). What is the probability that a randomly selected group of

100 people has an average IQ above 115?