
Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 13.1
Ex 13.1, 2
Ex 13.1, 3 Important
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Ex 13.1, 5
Ex 13.1, 6 (i) You are here
Ex 13.1, 6 (ii) Important
Ex 13.1, 6 (iii)
Ex 13.1, 7 (i)
Ex 13.1, 7 (ii)
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Ex 13.1, 10 (a) Important
Ex 13.1, 10 (b) Important
Ex 13.1, 11
Ex 13.1, 12 Important
Ex 13.1, 13 Important
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Ex 13.1, 16 (MCQ) Important
Ex 13.1, 17 (MCQ) Important
Last updated at Aug. 16, 2023 by Teachoo
Ex 13.1, 6 Determine P(E|F) A coin is tossed three times, where (i) E : head on third toss , F : heads on first two tossesCoin is tossed three times S = {HHH, HHT, HTH, THH, TTH, THT, HTT, TTT} E : head on third toss E = {HHH, HTH, THH, TTH} P(E) = 4/8=𝟏/𝟐 F : heads on first two tosses F = {HHH, HHT} P(F) = 2/8=𝟏/𝟒 Also, E ∩ F = {HHH} P (E ∩ F) = 1/8 We need to find P(E|F) P(E|F) = (𝑃(𝐸 ∩ 𝐹))/(𝑃(𝐹)) = (1/8 )/(1/4 ) = 1/8×4/1 = 𝟏/𝟐