The Amount in Dollars, A, Spent Weekly by a Household

question 72

Multiple Choice

The amount in dollars, A, spent weekly by a household on food is a function of the household's weekly income in dollars, I, and the number of people in the household, n. Thus, . If A_I (1000, 4) = a > 0, then which of the following is true?

• A)At a weekly income of $1000 and a household size of 4, an increase of 1 person in the household produces a decrease of $a in the amount spent weekly on food.
• B)At a weekly income of $1000 and a household size of 4, an increase of $1 in weekly income produces a decrease of $a in the amount spent weekly on food.
• C)At a weekly income of $1000 and a household size of 4, an increase of 1 person in the household produces an increase of $a in the amount spent weekly on food.
• D)At a weekly income of $1000 and a household size of 4, an increase of $1 in weekly income produces an increase of $a in the amount spent weekly on food.

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Definitions:

Lowest Score

The minimum value or achievement recorded in a set of data or test results.

Highest Score

The top or maximum score achieved in a test, competition, or assessment, indicating the best performance among all participants.

Normal Curve

The normal curve, or bell curve, is a graphical representation of a normal distribution, showing how data points are dispersed or spread out across the mean.

Standard Scores

Standard scores are a type of score that have been transformed to fit a normal distribution, with a mean of zero and a standard deviation of one, allowing comparison across different tests or assessments.