A Student Asked a Statistics Professor If Grades Were Marked

question 54

Multiple Choice

A student asked a statistics professor if grades were marked "on the curve." The professor decided
To give the student a project to determine if last year's statistics grades were normally distributed.
The professor told the student that last year's mean mark was 70 with a standard deviation of 10
And to use the following results.
What is the expected number of C's?

• A) 39.25
• B) 34.13
• C) 13.59
• D) 30.00
• E) 15.87

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Definitions:

Bonds

These are fixed-income investment products where an investor loans money to an entity (corporate or governmental) that borrows the funds for a defined period of time at a fixed interest rate.

Debt Instruments

Financial assets that represent a debtor's obligation to repay borrowed money or other forms of credit to the creditor according to stated terms.

Original Issue Discount

The difference between the par (face) value of a bond and the lower price at which it was originally sold, which must be reported as interest income over the life of the bond.

Tax-exempt Debt

Debt securities issued by state or municipal governments whose interest payments are exempt from federal income tax, and sometimes state and local taxes.