Concept explainers
Bleached again. Given the scenario in Mindscape 6, now suppose that 80% of blonde people are naturally blonde and that you are 50% accurate in your ability to correctly categorize fake hair color as fake and real hair color as real. What is the probability that Chris hair is fair and that your bleached beliefs were incorrect? Given these facts, should you pursue your relationship with Chris?
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The Heart of Mathematics: An Invitation to Effective Thinking
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- In Example 8, what is the probability that an employee chosen at random has 30 or more years of service?arrow_forwardThe following description of the classic Linda Problem appeared in the New Yorker. In this experiment subjects are told, Linda is thirty-one years old, single outspoken and very bright. She majored in philosophy. As a student, she was deeply concerned with the issue of discrimination and social justice and also participated in antinuclear demonstrations. They are then asked to rank the probability of several possible descriptions of Linda today. Two of them are bank teller and bank teller and active in feminist movement. Many people rank the second event as more likely. Explain why this violates basic concepts of probability. Source: New Yorker.arrow_forward
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