The Probability That a Sample Mean Is Within $\pm$ 1 Z of the Population Mean Is About
A)

question 32

Multiple Choice

The probability that a sample mean is within $\pm$ 1 Z of the population mean is about

• A).34.
• B).68.
• C).95.
• D).99.

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Definitions:

Income Distribution

The way in which a country's total income is spread among its population, affecting economic equality and living standards.

Purchasing Power

The value of a currency expressed in terms of the amount of goods or services that one unit of money can buy.

Per Capita Income

The average income earned per person in a certain area (city, region, country) in a specified year.

Back Translation

A method used in cross-cultural research and language translation where a text is translated from one language to another, and then a second translator translates it back to the original language to check for accuracy.