4 - Probability Questions Answers
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There are 8 distinct boxes and each box can hold any number of balls. A child having 4 identical balls randomly choose four boxes. Then another child having four balls, identical to the previous mentioned, again puts one ball in each of the arbitrary chosen four boxes. The probability that there are balls in at least 6 boxes is
Sir pls solve
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Probability to get following differences difference probability0 6/361 10/362 8/363 6/364 4/365 2/36So required probability =1-2[636(436+236)+1036(236)]now solveproblem is based on integral values so area is not very useful
1) (10/12)(9/11)(8/10)(7/9)
2) 4(10/12)(9/11)(8/10)(2/9)
3) (4*3/2)(10/12)(9/11)(2/10)(1/9)
4) 1 - (10/12)(9/11)(8/10)(7/9)