Twenty-two percent of all telephones of a certain type are submitted for service while under warranty. Of these, 60% can be repaired, whereas the other 40% must be replaced with new units. a company...

Extracted text: Twenty-two percent of all telephones of a certain type are submitted for service while under warranty. Of these, 60% can be repaired, whereas the other 40% must be replaced with new units. a company purchases fifteen of these telephones, what is the probability that exactly two will end up being replaced under warranty?