Examlex
The standard deviation is a commonly used measure of variability that indicates the average difference between scores in a distribution and their mean.
Supply for Heating Oil
The total availability of heating oil in the market, influenced by production levels, reserves, and importation.
Inferior Goods
Inferior goods are products whose demand decreases as consumer income rises, opposite to normal goods.
Demand
The amount of a product or service that buyers are prepared and capable of buying at different price levels over a specific time frame.
Income
Earnings acquired on a consistent basis through employment or investments.
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