The centres for disease control have determined that when a person is given a vaccine,the probability that the person will develop immunity to a virus is 0.8.If eight persons are given this vaccine,find the probability that (iii)all will develop immunity.

The probability that a person who undergoes a kidney operation will recover is 0.7.Find the probability thatof the six patients who undergo similar operations.(ii)all will recover.

The probability that a person who undergoes a kidney operation will recover is 0.7.Find the probability thatof the six patients who undergo similar operations.(i)none will recover.

The probability that a person who undergoes a kidney operation will recover is 0.7.Find the probability thatof the six patients who undergo similar operations.(iii)half of them will recover.

While going from Mumbai to Pune by car, the probability that a person will be stopped by each of the 3 policemen who control the traffic at three different places is 0.6. What is the probability that :at least two policeman will stop the person?

While going from Mumbai to Pune by car, the probability that a person will be stopped by each of the 3 policemen who control the traffic at three different places is 0.6. What is the probability that :exactly two policeman will stop the person?

While going from Mumbai to Pune by car, the probability that a person will be stopped by each of the 3 policemen who control the traffic at three different places is 0.6. What is the probability that :none of the policeman will stop the person?

A survey of people in a given region showed that 20% were smokers. The probability of death due to lungcancer, given that a person smoked, was 10 times the probability of death due to lung cancer, given thata person did not smoke. If the probability of death due to lung cancer in the region is 0.006, what is the probability of death due to lung cancer given that a person is a smoker?

The probability that a person who undergoes a kidney operation will recover is 0.7.Find the probability thatof the six patients who undergo similar operations.(iii)atleast hhalf of them will recover.

It is possible for a computer to pick up an erroneous signal that does not show up as an error on the screen.The error is called a silent error.A Particular terminal is defective and when while using the system 'word processor' it introduces a silent paging error with probability 0.1.The word processor is used 20 times during a given week.(1)Find the probability that no silent paging errors occur.