Let A = the event of getting at least 1 defective iPhone when 3 iPhones are randomly

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Let A = the event of getting at least 1 defective iPhone when 3 iPhones are randomly selected with replacement from a batch. If 5% of the iPhones in a batch are defective and the other 95% are all good, which of the following are correct?

a. P(A̅) = 10.95210.95210.952 = 0.857

b. P(A) = 1 - 10.95210.95210.952 = 0.143

c. P(A) = 10.05210.05210.052 = 0.000125

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