Stats

Jack wakes up late 60% of the time. If Jack wakes up late, the probability he's late for school is 90%. Jack wakes up on time 40% of the time. If Jack wakes up on time, the probability he's late for school is 30%. Below is a tree diagram of this scenario. Fill in the blanks of the tree diagram. Wakes Late .60 School Late School on Time School Late School on Time .70 What is the probability that Jack wakes up on time