Question

The probability that a screw manufactured by a company is defective is 0.1.the company sells screws in packets containing 5 screws in the packet are found to be defective. the probability that a packet would have to be replaced is

Answer 1

the answers of this question is 5

Answer 2

Answer:

Step-by-step explanation:

Consider binomial expansion

p=0.1,n=5

P(one or more screws defective)=1 - P(no screws defective)

= 1 - (5Co(0.9)^5 (0.1)^0)

= 1-0.59049

=0.40951