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what is the probability?

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The probability that a family owns a washing machine is 0.68, that it owns a DVD player is 0.81, and that it owns both a washing machine and a DVD player is 0.58. What is the probability that a randomly selected family owns a washing machine or a DVD player?

Oct 17th, 2017

This probability requires the use of OR rule:

Pw OR Pd = Pw + Pd - P (w and d)

                 = 0.68 + 0.81 - (0.68 x 0.81

                =. 1.49 - 0.551

                = 0.939

Answer: required probability is 0.939

Apr 9th, 2015

I have answered your question.

Niru

Apr 9th, 2015

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Oct 17th, 2017
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