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A Multiple-Choice Exam Offers Five Choices for Each Question

question 29

Multiple Choice

A multiple-choice exam offers five choices for each question. Jason just guesses the answers, so he has probability 1/5 of getting any one answer right. One of your math major friends tells you that the assignment of probabilities to the number of questions Jason gets right out of 10 is (rounded to three decimal places) :
A multiple-choice exam offers five choices for each question. Jason just guesses the answers, so he has probability 1/5 of getting any one answer right. One of your math major friends tells you that the assignment of probabilities to the number of questions Jason gets right out of 10 is (rounded to three decimal places) :   What is the expected number of right answers Jason will get if the test has 10 questions? A)  2.282 B)  2.493 C)  3.5 D)  5 E)  Can't tell from the information given.
What is the expected number of right answers Jason will get if the test has 10 questions?


Definitions:

Quick Ratio

A measure of liquidity similar to the current ratio except for exclusion of inventories. It equals cash plus receivables divided by current liabilities.

Industry Average

A statistical measure that represents the central tendency or typical value of a set of figures in a particular industry, often used for benchmarking.

Insolvency

The state in which an individual or entity cannot meet its financial obligations as debts become due.

Working Capital

The difference between a company's current assets and current liabilities, indicating the liquidity of a business.

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