A sample of three calculators is selected from a manufacturing line, and each calculator is classified as either defective (denote as d) or acceptable (denote as a). Let A, B, and C denote the events that the first, second and third calculators respectively, are defective. Find the probabilities of the following events. [HINT: List first the simple events of A, B, and C.] (a)A (b) B (c)A ∩ B (d) B ∪ C

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A sample of three calculators is selected from a manufacturing line, and each calculator is classified as either defective (denote as d) or acceptable (denote as a). Let A, B, and C denote the events that the first, second and third calculators respectively, are defective. Find the probabilities of the following events. [HINT: List first the simple events of A, B, and C.]

(a)A
(b) B
(c)A ∩ B
(d) B ∪ C

 

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