The Total solution for NCERT class 6-12
Answer - 21 : -
Answer - 22 : -
Answer - 23 : -
Giventhat the events 'A coming in time' and 'B coming in time' are independent.
Theadvantage of coming to school in time is that you will not miss any part of thelecture and will be able to learn more.
Twodice are thrown together and the total score is noted. The event E, F and G are"a total 4", "a total of 9 or more", and "a totaldivisible by 5", respectively. Calculate P (E), P(F)and P(G) and decide which pairs of events, if any, are independent.
Answer - 24 : -
Let Aand B be two independent events such that P (A) = p1 and P (B)= p2. Describe in words the events whose probabilities are:
(i) p1p2 (ii) (1 - p1)p2 (iii)1-(1- p1) (1 - p2) (iv) p1 + p2 =2p1p2
Answer - 25 : -