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Answer to Question #2936 in Statistics and Probability for Blenda

Question #2936
The probability that ea new battery does not work is 0.04.<br>a) what is the probability that e new battery does work? <br>b)A firm prodused 5000 batteries. How many would you expect to be faulty?
Expert's answer
The probability that a new battery does not work is 0.04.
a)What is the probability that a new battery does work?
Solution:
The probability that a new battery works is: (1 -& the probability that it doesn&rsquo;t work) = 1 - 0.04 = 0.06
Answer: 0.06
& b)A firm prodused 5000 batteries. How many would you expect to be faulty?
Solution:
Expected value = x*p(x) = 5000*0.04 = 200
Answer: 200

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