Q1-The incidence of occupational disease in an industry is such that workers have 30% chance of suffering from it.what is the probability that out of 12, 8 or more workers will contact the disease? Q2- In a certain sample of 4000 families, 2400 families are consumer of tea. Out of 2800 Hindu families 1600 families consumes tea, Use Y2 ( Y square) test and state whether there is any significant difference between consumption of tea among Hindu & non-Hindu families?

Ricku Grewal

14 Years agoGrade