Compute the Mean and Standard Deviation of a Binomial Random

question 69

Multiple Choice

Compute the Mean and Standard Deviation of a Binomial Random Variable
-The probability that a football game will go into overtime is 14%. In 140 randomly selected football games, what is the mean and the standard deviation of the number that went into overtime

• A) mean: 19.6; standard deviation: 4.10560592
• B) mean: 19.6; standard deviation: 4.42718872
• C) mean: 18.2; standard deviation: 4.10560592
• D) mean: 18.2; standard deviation: 4.42718872

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Definitions:

Operating Leverage

A measure of how revenue growth translates into growth in operating income, indicating the degree to which a company can increase its profits by increasing sales.

Profits

The financial gains that remain after subtracting all expenses from revenue, indicating the financial success of a business.

Operating Leverage

A measure of how sensitive a company's operating income is to a change in its sales volume, indicating the degree to which fixed costs are used in production.

Profits

The financial gain obtained when revenues generated from business activities exceed the expenses, costs, and taxes needed to sustain them.