when a large number of flash lights leaving a factory is inspected it is found that the bulb is faulty in 1% of the flash lights and the switch is faulty in 1.5% of them.Assuming that the faults occur independently and at random,find
a)the probability that a sample of 80 flash lights contains at least one flash lights with both a defective bulb and a defective switch.
please help me(Headbang)
Using the Poisson approximation to the binomial distribution:
Originally Posted by tanjir
(approximation correct to 4 decimal places).