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Ex 13.2, 15 (iii) - Chapter 13 Class 12 Probability (Term 2)
Last updated at March 16, 2023 by Teachoo
Ex 13.2
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Ex 13.2, 3 Important
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Ex 13.2, 11 (i)
Ex 13.2, 11 (ii) Important
Ex 13.2, 11 (iii)
Ex 13.2, 11 (iv) Important
Ex 13.2, 12
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Ex 13.2, 15 (i)
Ex 13.2, 15 (ii)
Ex 13.2, 15 (iii) Important You are here
Ex 13.2, 16 Important
Ex 13.2, 17 (MCQ)
Ex 13.2, 18 (MCQ) Important
Chapter 13 Class 12 Probability
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Transcript
Ex 13.2, 15 One card is drawn at random from a well shuffled deck of 52 cards. In which of the following cases are the events E and F independent ? (iii) E : ‘the card drawn is a king or queen’ F : ‘the card drawn is a queen or jack’.E : the card drawn is king or queen Number of kings or queen = 4 + 4 = 8 Total number of cards = 52 P(E) = 8/52 = 2/13 F : the card drawn is queen or jack Number of queen or jack = 4 + 4 = 8 Total number of cards = 52 P(F) = 8/52 = 2/13 E ∩ F = the card drawn is a king or queen & queen or jack E ∩ F = the card drawn is a queen So, P(E ∩ F) =4/52 =1/13 Now, P(E) . P(F) = 12/13 × 2/13 = 4/169 Since P(E ∩ F) ≠ "P(E) . P(F)" Thus, E and F are not independent
