Question 1 - If it is known that in a batch of products 16% are defective, what is the expected number of products to be drawn to get a non-defective item?

P(Defective) = 0.16; P(Non-defective) = 1-0.16 = 0.84 np = 1 {To get one non -defective item} n * 0.84 = 1; n = 1.19