What does a production possibilities curve represent? a combination of price and demand of goods and services a combination of the goods produced before and after a change in a factor of production a combination of two factors of production used to produce a single good or service a combination of two goods that can be produced using limited resources

The usa today reports that the average expenditure on valentine's day is $100.89. do male and female consumers differ in the amounts they spend? the average expenditure in a sample survey of 47 male consumers was $135.67, and the average expenditure in a sample survey of 38 female consumers was $68.64. based on past surveys, the standard deviation for male consumers is assumed to be $34, and the standard deviation for female consumers is assumed to be $17.