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प्रश्न
Two customers are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another. What is the probability that both will visit the shop on consecutive days?
उत्तर
Total no. of days to visit the shop = 6 {Mon to Sat}
Total no. possible outcomes = 6 × 6 = 36
i.e. two customers can visit the shop in 36 ways
E⟶ event of visiting shop on consecutive days
No. of favourable outcomes = (M, T), (T, W), (W, TH), (TH, F), (F, S), (T, M), (W, T), (TH, W), (F, TH), (S, F)
Probability, P(E) = `"No. of favorable outcomes"/"Total no.of possible outcomes"`
P(E) = `10/36`
= `5/18`
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