1 The probability of obtaining no defective components from

1) The probability of obtaining no defective components from a sample of 56 items is 0.33, while the probability of obtaining one defective component is 0.42. What is the probability of (a) obtaining not more than one defective component in the sample and (b) obtaining more than one defective component in the sample?

Solution

a)

P(at most one defective component)

                =P( no defective component)+P( one defective component)

                =0.33+0.46=0.79

b)

P(more than one defective component)=1-P( atmost one defective sample)=1-0.79=0.21