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a machine made some bolt in which 75% bolt are waste , if 5 bolt are choose then find probability to come max. 2 waste bolt


Ravi kumar 25th Dec, 2018
Answer (1)
harsh Student Expert 26th Dec, 2018

((5c0 + 5c1 + 5c2)/(2*2*2*2"2))*3/4

Sum of 0 waste bolt + 1 waste bolt+ 2 waste bolt divided by number of total outcomes multiply by the number of waste bolt made in machine.


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