Chapter 11: Problem 23
Describe a situation in which a business can use expected value.
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These are the key concepts you need to understand to accurately answer the question.
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Chapter 11: Problem 23
Describe a situation in which a business can use expected value.
These are the key concepts you need to understand to accurately answer the question.
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In Exercises 11-14, a single die is rolled twice. Find the probability of rolling a 5 the first time and a 1 the second time.
Explain how to find and probabilities with dependent events. Give an example.
A construction company is planning to bid on a building contract. The bid costs the company \(\$ 1500\). The probability that the bid is accepted is \(\frac{1}{5}\). If the bid is accepted, the company will make \(\$ 40,000\) minus the cost of the bid. Find the expected value in this situation. Describe what this value means.
Involve computing expected values in games of chance. Another option in a roulette game (see Example 6 on page 760 ) is to bet \(\$ 1\) on red. (There are 18 red compartments, 18 black compartments, and 2 compartments that are neither red nor black.) If the ball lands on red, you get to keep the \(\$ 1\) that you paid to play the game and you are awarded \(\$ 1\). If the ball lands elsewhere, you are awarded nothing and the \(\$ 1\) that you bet is collected. Find the expected value for playing roulette if you bet \(\$ 1\) on red. Describe what this number means.
A student is selected at random from a group of 200 students in which 135 take math, 85 take English, and 65 take both math and English. Find the probability that the selected student takes math or English.
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