The GPAs of all students enrolled at a large university follow a normal distribution with a mean of 3.02 and a standard deviation of 0.29. a) Find the probability that the mean GPA of a random sample of 20 students selected from this university is between 2.95 and 3.11. b) Find the probability that the variance GPA of a random sample of 5 students selected from this university is less than 0.0347.

Q: -0.50 1.00 а) 0.60 -100 -0.50 b) 0.60 100 -1.00 -0.50 1.00 c) 0.60 -1.00 -0.50 1.00 d) 60 -1.00

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