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Question 5 A box contains balls numbered 1, .,.,a. A ball is drawn at random: (a) What is the probability that its label number is divisible by 3 or 4? (b) What is the probability in (a) as noo?
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As givn in gueetien, a tor contine 1, 2, 3, - e these are a tutalm balls in the box. ④. Ne have to select a tall at sandorn and tad the pe bability that the label n urnhon, on the hall ie) We have to tind P [(di tu) 3) U (divisible hj 4) J = ? vis ble A3, 6, 9, 12, IS18, -- 시니mbess clivisible 4,8 , 12, )6, ttene, we see ナhat the puahabili t f we have to find m mumbensm divisible 3Simil mumber alivisi ble probability - m/4 千 Now P I dlwsible by 3 and J- fub I divniaible 12J 12- As we krans that (olivisible P I dvisible b 3 and 4 boto J 1 4 12 6 1 2- 12 2. habiltty hat he label number i 7hus me pito ,6. ivn, eid out me pusbabilit Hese in@ Prob ability1 2 The above probabil cleady scen, nt depand upen Probabiltyi Phobahil 2

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