a. if one battery is selected, find the probability that is defective.

b. if 2 batteries are randomly selected, find the probability that they are both good.

c. if 3 batteries are randomly selected, find the probability that at least one is good

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a) probability that one battery is defective = 100%-48%

=52%

b)=48/1000*48/100

=0.2304c)52/100*48/100*52/100=119808/1000000=0.119808

=0.2304

c)52/100*48/100*52/100

=119808/1000000

=0.119808

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