A National Study Found That the Average Family Spent $422

question 2

Multiple Choice

A national study found that the average family spent $422 a month on groceries, with a standard deviation of $84. The average amount spent on housing (rent or mortgage) was $1120 a month,
With standard deviation $212. The expected total a family spends on food and housing is 422 + 1120= $1542. What is the standard deviation of the total?

• A) $295
• B) $128
• C) $148
• D) $228
• E) It cannot be determined.

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Definitions:

Provides Information

The act of supplying data, facts, or details about a specific topic or subject.

Annual Report

A comprehensive report on a company's activities, financial performance, and strategy throughout the preceding year.

Convenience Sample

A group of subjects to whom the researcher has easy access; not a random sample.

Quota Sample

A sampling method where the sample is designed to include individuals representing certain characteristics in proportions that match the general population.