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April 19, 2015

Homework Help: statistics

Posted by Anonymous on Wednesday, February 15, 2012 at 9:47pm.

Suppose that 8% of a certain batch of calculators have a defective case, 11% have
defective batteries, and 3% have both of these problems. Construct the probability distribution
table (categories are defective case/non-defective case, and defective batteries/non-defective
batteries). Find the probability that a calculator has
(a) A defective case or defective batteries.
(b) A defective case and good batteries.
(c) Defective batteries, given the case is good.
(d) Is having a defective case independent from having defective batteries?

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