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The average starting salary for this year's graduates at a large university (LU) is $20,000 with...

The average starting salary for this year's graduates at a large university (LU) is $20,000 with a standard deviation of $8,000. Furthermore, it is known that the starting salaries are normally distributed.

a. What is the probability that a randomly selected LU graduate will have a starting salary of at least $30,400?

b. What is the probability that a randomly selected LU graduate will have a salary of exactly $30,400?

c. Individuals with starting salaries of less than $15600 receive a low income tax break. What percentage of the graduates will receive the tax break?

d. If 189 of the recent graduates have salaries of at least $32240, how many students graduated this year from this university?

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orchestra answered 2 years ago
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