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davestrider404
09.04.2020 •
Mathematics
A production process manufactures electronic components with timing signals whose duration follows a normal distribution. A random sample of 55 components was taken, and the durations of their timing signals were measured.a. The probability is 0.01 that the sample variance is bigger than what percentage of the population variance?
b. The probability is 0.05 that the sample variance is less than what percentage of the population variance?
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Ответ:
obviously 16 books