The starting salaries of individuals with an MBA degree are normally distributed with a mean of $100000 and a standard deviation of $15,000 a) What is the probability that the starting salary of a randomly selected individual with an MBA degree is equal to or larger than $90,000 b) What is the prob...

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The starting salaries of individuals with an MBA degree are normally distributed with a mean of $100000

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The starting salaries of individuals with an MBA degree are normally distributed with a mean of $100000 and a standard deviation of $15,000.

a) What is the probability that the starting salary of a randomly selected individual with an MBA degree is equal to or larger than $90,000?
b) What is the probability that in a sample of 100 randomly selected individuals with an MBA degree, the average starting salary is equal to or larger than $90,000?