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  1. study help
  2. subject categories
  3. sciences
  4. mathematics
  5. november 2020
  6. 09

Mathematics Questions and Answers November 09, 2020

Expert-verified solutions to help you succeed

A device has three components and works as long as at least one of the components is functional. The reliabilities of the components are 0.96, 0.91, and 0.80. What is the probability that the device will work when needed?

The pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 265 days and a standard deviation of 10 days. (a) What is the minimum pregnancy length that can be in the top 11% of pregnancy lengths? (b) What is the maximum pregnancy length that can be in the bottom 4% of pregnancy lengths?
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