A Regression Analysis Between Demand (Y in 1000 Units) and Price

question 38

Multiple Choice

A regression analysis between demand (y in 1000 units) and price (x in dollars) resulted in the following equation = 9 - 3x The above equation implies that if the price is increased by $1, the demand is expected to

• A)increase by 6 units
• B)decrease by 3 units
• C)decrease by 6,000 units
• D)decrease by 3,000 units

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Definitions:

Industrial Melanism

A phenomenon in which darker forms of species evolve in polluted environments, typically as a result of higher survival rate against predation.

Microevolution

Change in gene frequencies between populations of a species over time.

Gene Pool

The complete set of unique alleles in a population or species, representing its genetic diversity.

Gametes

Reproductive cells (sperm in males and eggs in females) that carry half the genetic information of an organism and combine during fertilization.