digital limited is a manufacturing company that deals in the product of soft drink bottles. during a quality assurance exercise,it was noted that of every production lot,0.2 per cent of soda bottles are found to be defective. the soda bottles are packed in crates each containing 25 bottles soft drinks manufacturer recently bought 1500 crates of soda bottles from digital limited. using the poisson distribution, determine the number of crates that will contain

a)no defective soda bottle

b) at least two defective soda bottles