{"id":6983,"date":"2021-10-22T14:21:43","date_gmt":"2021-10-22T08:51:43","guid":{"rendered":"https:\/\/mathemerize.com\/?p=6983"},"modified":"2021-10-25T01:53:56","modified_gmt":"2021-10-24T20:23:56","slug":"it-is-given-that-the-events-a-and-b-are-such-that-pa-1-4-pa-b-1-2-and-pb-a-2-3-then-pb-is-equal-to","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/it-is-given-that-the-events-a-and-b-are-such-that-pa-1-4-pa-b-1-2-and-pb-a-2-3-then-pb-is-equal-to\/","title":{"rendered":"It is given that the events A and B are such that P(A) = 1\/4, P(A\/B) = 1\/2 and P(B\/A) = 2\/3. Then, P(B) is equal to"},"content":{"rendered":"
We know that,<\/p>\n
P(A\/B) = \\(P(A \\cap B)\\over P(B)\\)\u00a0 \u00a0 …….(i)<\/p>\n
and P(B\/A) = \\(P(B \\cap A)\\over P(A)\\)\u00a0 \u00a0 ……….(ii)<\/p>\n
\\(\\therefore\\)\u00a0 P(B) = \\(P(B\/A).P(A)\\over P(A\/B)\\) = \\(1\\over 3\\)<\/p>\n
The probability of India winning a test match against the west indies is 1\/2 assuming independence from match to match. The probability that in a match series India\u2019s second win occurs at the third test is<\/a><\/p>\n A fair die is tossed eight times. The probability that a third six is observed on the eight throw, is<\/a><\/p>\n Consider rolling two dice once. Calculate the probability of rolling a sum of 5 or an even sum.<\/a><\/p>\n A and B play a game, where each is asked to select a number from 1 to 25. If the two numbers match, both of them win a prize. The probability that they will not win a prize in a single trial is<\/a><\/p>\n