Real World Graduation, Question 88: Social Security

RealWorldGraduation_Question_88_Social_Security  <– PDF

Both the question and answer are contained in the PDF file, since the question requires a graphic that does not translate well into this format.

Thanks for reading,

EDD

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RealWorldGraduation_Question_87_Football and Statistics   <– PDF

On a football team, a “cornerback” is a defensive player whose main job is “pass defense”. His job is to “cover” the other teams’ pass receivers.  His duties include preventing the receiver from catching a pass from the quarterback, intercepting the pass if he can, and tackling the receiver if he does catch a pass from the quarterback.  He also has other defensive duties related to defending against running plays and blocking.

What would be the best way to determine, based on statistics collected over player’s careers, of which cornerbacks were the most highly skilled at pass defense?

a) Total number of interceptions of passes

b) Total number of tackles made against receivers who caught passes

c) Sum of total number of interceptions and number of passes broken up

d) Sum of total number of interceptions and fumbles forced (i.e., total “turnovers”)

e) Some weighted combination of all of the above

(The answer is on p. 2 of the PDF.)

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Real World Graduation, Question 86: Identity Theft

RealWorldGraduation_Question_86_Identity_Theft   <– PDF

An insurance company offers insurance against identity theft. It covers you for all losses you incur due to the fraudulent use of your identity, should it be stolen.  On average, identity theft cases result in losses of about $3500.  The insurance company offers various types of coverage at various costs described below.  What is the best value for the money, considering the risk?

a) For $10 per month, there is a $750 deductible, after which the insurance company will cover all losses up to $5,000, and will cover 50% of losses above $5,000 up to $10,000. The insured is responsible for half the losses between $5,000 and $10,000, and all the losses above $10,000

b) For $15 per month, there is a $1,000 deductible, after which the insurance company will cover all losses up to $50,000. The insured is responsible for losses above $50,000.

c) For $25 per month, there is a $3,000 deductible, after which the insurance company will cover all losses up to $100,000. The insured is responsible for losses above $100,000.

d) For $35 per month, there is no deductible, and the insurance company will cover all losses up to $75,000, and 80% of all losses thereafter up to $250,000. The insured is responsible for losses above $250,000.

e) For $50 per month, there is no deductible, and the insurance company will cover all losses up to $1,000,000

(The answer is on p. 2 of the PDF.)

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Real World Graduation, Question 85: Energy Efficiency

RealWorldGraduation_Question_85_Energy_Efficiency   <– PDF

Four people commute to work in the following ways. Person A drives a very fuel efficient car that gets 50 miles to the gallon; he drives alone 75 miles each way to work.  Person B drives alone in an old inefficient pickup truck that gets 12 miles to the gallon; he drives 12 miles each way.  Person C drives a car that gets 25 miles to the gallon.  He drives it alone 5 miles each way to a light-rail station.  There he gets on public light-speed rail; each train consists of 4 cars, and each car holds up to 30 people.  The train is electric, but its energy usage is the equivalent of 2 miles to the gallon, and his commute on the train is 20 miles each way.  Person D takes the city bus 16 miles each way; the bus gets 4 miles per gallon, and holds up to 60 people.  Assume that all the mileages are calibrated to the same blend of gasoline (although they may actually use different fuels).  Which person uses the most efficient means in of energy expenditure in the course of getting back and forth to work?

a) Person A

b) Person B

c) Person C

d) Person D

e) Indeterminate exactly, but it is either Person A or D

(The answer is on p. 2 of the PDF.)

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