The incidence of occupational desease in an industry is such that the workers have a 20% chance of suffering from it. What is the probability that out of six workers 4 or more will catch the disease?

Workers in an industry have a 10% chance of sufering from an occupational disease ,Probability that , out of 6 workers , at least 5 will catch the discease is

The incidence of occupational disease is such that on the average 20% of workers suffer from it. If 10 workers are selected at random, find the probability that exactly 2 workers suffer from the disease.

The incidence of occupational disease is such that on the averatge 20% of workers suffer from it. If 10 wrkers are selected at random, find the probability that not more that 2 workers suffer from the disease.

The incidence of an occupation disease to the workers of a factory is found to be 1//5000 . If there are 10000 workers in a factory then the probability that none of them will get the disease is

The incidence of an occupation disease to the workers of a factory is found to be 1//5000 . If there are 10000 workers in a factory then the probability that none of them will get the disease is

In an automobile factory, certain parts are to be fixed into the chassis in a section before it moves into another section. On a given day, one of the three persons A, B and C carries out this task. A has 45% chance, B has 35% chance and C has 20% chance of doing the task. The probability that A, B and C will take more than the allotted time is (1)/(6), (1)/(10) and (1)/(20) respectively. If it is found that the time taken is more than the allotted time, what is the probability that A has done the task ?

In a group of 400 people, 160 are smokers and non-vegetarian, 100 are smokers and vegetarian and the remaining are non-smokers and vegetarian. The probabilities of getting a special chest disease are 35%,,20% and 10% respectively. A person is chosen from the group at random and is found to be suffering from the disease. What is the probability that the selected person is a smoker and non-vegetarian?

In a group of 400 people, 160 are smokers and non-vegetarian, 100 are smokers and vegetarian and the remaining are non-smokers and vegetarian. The probabilities of getting a special chest disease are 35%, 20% and 10% respectively. A person is chosen from the group at random and is found to be suffering from the disease. What is the probability that the selected person is smoker and non vegetarian ?