A shipment of 20 computers contains 4 defective machines.Two computers are selected at random without replacement and tested for being detective.
(a). is this a binomial experiment? why or why not
solution.
Yes. because each trial can result in just two possible outcomes.
(b). What is the probability that both computers are detective.
solution.
16/20sound(s)
4/20detectives(D)
p(D1)and P(D2)
(C).What is the probability that atleast one is detective?
solution
P('SS)
=1-P(SS)
1 answer