Delayed flights

A certain airline offers flights departing to New York on Tuesdays and Fridays, but sometimes the flights are delayed:

	Delayed	On time	Total
Tuesday	24	114	138
Friday	11	127	138
Total	35	241	276

At the bottom of the Delayed column you have a total of 35, which means there were 35 delayed flights out of the total of 276 departures in the sample. Of these, 24 were on Tuesday and 11 on Friday.

Given the table, answer the following questions:

1
What is the probability of a flight being on time?
2
Every departure is on time with probability P_On_time. What is the probability of a flight being delayed?
3
Given that it's Tuesday, what is the probability of a flight being delayed (P(Delayed|Tuesday))?
4
Given that it's Friday, what is the probability of a flight being delayed (P(Delayed|Friday))?

Exercise

Delayed flights

Instructions 1/4