what is the probability of making 6 free throws in a row if the shooter has a 83% chance to make each shot

Twenty percent of all telephones of a certain type are submitted for service while under warranty. of these, 70% can be repaired, whereas the other 30% must be replaced with new units. if a company purchases ten of these telephones, what is the probability that exactly two will end up being replaced under warranty? (round your answer to three decimal places.)