A Math Professor Once Claimed That 90% of Students Pass

question 42

Multiple Choice

A math professor once claimed that 90% of students pass a particular class of hers.To check this claim, a random sample of 150 students who had taken this class was obtained.It was found that 129 passed the class.If the professor is correct, what is the probability that 129 or fewer of the students in such a sample would have passed the class?

• A) 0.9484
• B) 0.0516
• C) 0.5516
• D) 0.4484

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Definitions:

Purchase Cost

The amount paid to buy goods, materials, or assets.

Major Repairs

These are significant expenditures to restore or improve an asset, extending its useful life.

Annual Cash Operating Costs

The total amount of money a company spends on its day-to-day operations within a fiscal year.

Net Present Value

A financial metric used to evaluate the profitability of an investment, calculated by discounting all future cash flows to their present value and subtracting the initial investment.