The Mean Score on a Test Is 80, and the Standard

question 11

Multiple Choice

The mean score on a test is 80, and the standard deviation is 20 points. What percentage of people scored 75 or less? (Round to the nearest whole number.)

• A) 10
• B) 40
• C) 43
• D) 60
• E) None of the above

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Definitions:

Base Year

A reference year against which financial or economic data is compared, often used in index numbers and economic models.

Price Level

The general level of prices for goods and services in the economy at a given time.

Fixed-Weight Price Index

An economic measure that calculates price changes over time, holding the quantity of goods and services constant to avoid the effect of substitution.

Nominal Gross Domestic Product (GDP)

A rephrased term for Nominal GDP, referring to the market value of all final goods and services produced within a country in a year, unadjusted for inflation.