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The mean college loan debt for a 22 year old college graduate is approximately normally distributed...

The mean college loan debt for a 22 year old college graduate is approximately normally distributed with a mean college loan debt of $78645 and a standard deviation of $18045. (For parts a thru c) What is the probability that a 22 year old college graduate selected at random will have:

a) A college loan debt less than $70000?

b) A college loan debt greater that $96000?

c) A college loan debt between $75000 and $95000?

d) What would be the highest 20% credit card debt for a 22 year old college graduate?

Math   Statistics-And-Probability   
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