Let 
a) For what value of c is f a probability density function?
b) For that value of c, find P (-1 < X < 1).
Definitions:
Wage
The price paid for the use or services of labor per unit of time.
Demand Schedule
A table that shows the quantity of a good or service that consumers are willing to buy at various prices.
Labor Services
The physical and mental efforts that people contribute to the production of goods and services.
Technology Changes
The process of innovation and the adoption of new or improved technologies and systems.
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