Scores on an entrance exam in a large university, freshman course are normally distributed with mean 72.5 and standard deviation 13.0. • Find the probability that the score X on a randomly selected...

Extracted text: Scores on an entrance exam in a large university, freshman course are normally distributed with mean 72.5 and standard deviation 13.0. • Find the probability that the score X on a randomly selected exam paper is between 70 and 80. • Find the probability that the mean score X of 40 randomly selected exam papers is between 70 and 80.