A Tennis Player Makes a Successful First Serve 51% of the Time

question 56

Multiple Choice

A tennis player makes a successful first serve 51% of the time. If she serves 9 times, what is the probability that she gets exactly 3 successful first serves in? Assume that each serve is
Independent of the others.

• A)0.154
• B)0.00184
• C)0.133
• D)0.0635

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Definitions:

Economic Profit

The difference between a firm's total revenues and its total costs, including both explicit and implicit costs, representing a profit above the opportunity cost.

Explicit and Implicit Costs

Explicit costs are direct payments made to others in the course of running a business, like wages or rents, while implicit costs represent the opportunity costs of using resources owned by the business.

Marginal Costs

The cost of producing one additional unit of a good or service, reflecting the change in total cost that comes from a one unit increase in output.

Marginal Benefits

The additional benefit received from consuming or producing one more unit of a good or service.