At a Course in Public Speaking, the Instructor Always Gives

question 29

Multiple Choice

At a course in public speaking, the instructor always gives an opening speech that lasts between fifteen and eighteen minutes. The length of the speech can be modeled by a uniform distribution, that is, the speech is just as likely to last fifteen minutes as it is to last eighteen minutes. The probability density curve is shown below. What is the probability that the speech will last sixteen minutes or more? What is the probability that the speech will last between eighteen and nineteen minutes?

• A)Can't be determined with the given information
• B)0.50; 0.25
• C)0.50; 0.75
• D)0.75; 0.25

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Definitions:

Interest Rate

The percentage at which interest is charged or paid on a loan or savings, typically expressed as an annual percentage rate.

Present Value

The immediate value of an upcoming amount of money or a series of cash inflows, based on a set rate of return.

Usury Law

Legislation that sets maximum interest rates that can be charged on loans to prevent exploitation and excessive interest charges.

Shortage

A market condition where the demand for a product exceeds its supply, often leading to higher prices.