Questions
In a workshop, there are five machines and the probability of any one of them to be out of service on a day is . If the probability that at most two machines will be out of service on the same day is then k is equal to:
detailed solution
Correct option is C
Required probability = when no. machine has fault + when only one machine has fault + when only two machines have fault.=5C0345+5C114344+5C2142343=2431024+4051024+2701024=9181024=459512=27×1764×8=343×k=343×178∴k=178Similar Questions
If for a Binomial distribution the mean is 10 and the standard deviation is
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