A furniture shop has six identical steel cabinets of brand A and four identical steel cabinets of brand B. Three customers buy one cabinet each. Then the probability that two or more cabinets of brand A have been sold

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Solution

The correct option is C
Option (c)
The total possibilities are 2 × 2 × 2 = 8 (each customer has two possibilities). These are AAA, AAB, ABA, BAA, BBA, BAB, ABB, BBB. The favourable outcomes are only 4 (AAA, AAB, ABA, BAA). Thus the probability = = .

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A furniture shop has six identical steel cabinets of brand A and four identical steel cabinets of brand B. Three customers buy one cabinet each. Then the probability that two or more cabinets of brand A have been sold

The correct option is C Option (c) The total possibilities are 2 × 2 × 2 = 8 (each customer has two possibilities). These are AAA, AAB, ABA, BAA, BBA, BAB, ABB, BBB. The favourable outcomes are only 4 (AAA, AAB, ABA, BAA). Thus the probability = = .

The correct option is C
Option (c)
The total possibilities are 2 × 2 × 2 = 8 (each customer has two possibilities). These are AAA, AAB, ABA, BAA, BBA, BAB, ABB, BBB. The favourable outcomes are only 4 (AAA, AAB, ABA, BAA). Thus the probability = = .