Mathematics, 18.02.2020 17:26 amoore51
Wonderful Widgets Inc. has developed electronic devices which work properly with probability 0.95, independently of each other. The new devices are shipped out in boxes containing 400 each.
a) What percentage of boxes contain 390 or more working devices?
b) The company wants to guarantee that k or more devices per box work. What is the largest k such that at least 95% of the boxes meet the warranty?
Answers: 3
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