An Aptitude Test Has a Mean Score of 80 and a Standard

question 133

Multiple Choice

An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What proportion of tests has scores over 90?

• A) .9772
• B) .0228
• C) .9544
• D) .0456

---

Definitions:

Classical Theory

Refers to an economic theory that asserts that the economy is self-regulating, markets are best left alone without government intervention, and supply creates its own demand.

Interest Rate

The fee that a lender imposes on a borrower for the usage of assets, represented as a proportion of the principal amount.

Savings And Investment

The act of setting aside income for future use and the use of those savings for new capital expenditures or financial products.

Aggregate Demand Curve

A graphical representation showing the relationship between the overall price level and the total demand for goods and services in an economy.