Josiah has a 20% experimental probability

of hitting the snooze button any morning

when his alarm goes off. When he hits the

snooze button, there is a 25% conditional

probability that he misses his bus. He has

never missed the bus when he has not hit the

snooze button. If Josiah's alarm woke him

120 times over the course of the semester,

how many times did Josiah miss his bus?