Maximum theoretical coefficient of performance
Consider a refrigerator that keeps its contents at 9 degrees Fahrenheit when the house temperature is 73 degrees Fahrenheit. What is the maximum theoretical coefficient of performance, CP, for this refrigerator?
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A multiple-choice test consists of 77 questions with possible answers of a, b, c, d, e. Estimate the probability that with random quessing, the number of correct answers is at least 33.
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