Slide18.JPG

Slide19.JPG

 

 

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


Transcript

Ex 13.1, 7 Determine P(E|F) Two coins are tossed once, where (i) E : tail appears on one coin, F : one coin shows headTwo coins are tossed once S = {(H, H), (H, T), (T, H), (T, T)} We need to find the probability that tail appears on one coin given that one coin shows head Let E: tail appears on one coin F: one coin shows head We need to find P(E|F) Event E E = {(H, T), (T, H)} P(E) = 2/4=1/2 Event F F = {(H, T), (T, H)} P(F) = 2/4=𝟏/𝟐 Also, E ∩ F = {(H, T), (T, H)} P(E ∩ F) = 2/4=𝟏/𝟐 Now, P(E|F) = (𝑃(𝐸 ∩ 𝐹))/(𝑃(𝐹)) = (1/2)/(1/2) = 1

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.