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The Department of Justice estimates that Americans with disabilities have discretionary spending power that is twice that of the teenage market and four times that of - to -year-olds. If so, what fraction of the spending power of people with disabilities is the combined spending power of - to year-olds and teenagers?
Multiplication and division are inverse operations. In other words, if you know that is times , you can find by dividing by . Dividing a number by is the same as multiplying it by .
Suppose the New York Yankees and Philadelphia Phillies (two Major League Baseball teams) are playing a best-of-three series. The first team to win two games is the winner of the series, and the series ends as soon as one team has won two games. The first game is played in New York, the second game is in Philadelphia, and if necessary the third game is in New York. The probability that the Yankees win a game in their home park is 0.55 . The probability that the Phillies win a game in their home park is 0.53 . You can assume that the outcomes of the games are probabilistically independent.
Suppose you are a Yankees fan, so you place a bet on each game played where you win if the Yankees win the game and you lose if the Yankees lose the game. Find the distribution of your net winnings. Then find the mean and standard deviation of this distribution. Is this betting strategy favorable to you?
Both Apple and Google sell electronic devices, and each of these companies has a different product mix. Assume the following data are available for both companies.
|Average selling price per unit sold||$550 per unit||$470 per unit|
|Average variable cost per unit sold||$250 per unit||$270 per unit|
|Total fixed costs ($millions)||$36,000||$10,000|
Compute each company's break-even point in unit sales. (Each company sells many devices at many different selling prices, and each has its own variable costs. This assignment assumes an average selling price per unit and an average cost per item.)
If unit sales were to decline, which company would experience the larger decline in operating profit?