joshua and jose work at an auto repair center with 5 other workers . for a survey on health care insurance , 2 of the 6 workers will be randomly chosen to be interviewed . what is the probability that joshua and jose will both be chosen ?
"two methods 1 ) probability of chosing josh first = 1 / 7 probability of chosing jose second = 1 / 6 total = 1 / 42 probability of chosing jose first = 1 / 7 probability of chosing josh second = 1 / 6 total = 1 / 42 final = 1 / 42 + 1 / 42 = 1 / 21 a"
divide(divide(factorial(6), multiply(factorial(2), factorial(5))), factorial(6))