Solve the Problem. -Scores on a Test Are Approximately Normally Distributed with a Distributed

question 92

Multiple Choice

Solve the problem.
-Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students. What is the bottom cutoff for an A
Grade? Round your answer to the nearest whole number.

• A)80
• B)79
• C)90
• D)82

---

Definitions:

Exchange Rate

The equivalent worth of one currency in another.

Currency

A system of money in general use in a particular country, facilitating the exchange of goods and services.

Interest Rate Parity

A theory which says that the difference between the interest rates of two countries is equal to the differential between the forward exchange rate and the spot exchange rate of their currencies.

Forward Rates

The predetermined interest rates or currency exchange rates agreed upon for transactions that will be executed at a future date.