Question

Many questions are difficult or nearly impossible to answer using table 2 in its current form. Since computing the answers to these questions is difficult or close to impossible, just give the formulas you would need to obtain the answers to these questions.
Part A
What is the probability that a randomly chosen flight arrives on time?

Part B
Overall, which carrier has the highest probability of arriving on time?

Part C
Given that a randomly chosen flight arrives on time, what is the probability that it arrives in Philadelphia (PHL)?

Part D
Given that the carrier is Hawaiian Airlines (HA), what is the probability that a randomly chosen flight arrives on time?

Part E
If you’re a frequent flyer who travels to many different airports, and you have the choice between SkyWest Airlines (OO) and Southwest Airlines (WN) for all your flights, which carrier should you choose if your primary concern is arriving on time?

*All I need are the formulas that would work to find these answers, not the answers themselves. PLEASE HELP IMMEDIATELY!

Answer 1

Answer:

see below

Step-by-step explanation:

Part A

the probability that a randomly chosen flight arrives on time = number of flights that arrive on time/ total number of flights

Part B

The same as part A but applied for each carrier and then comparing who has the closest number to 1

Part C

total number of flights that arrives on time in PHL/ total number of flights that are on time for all airports

Part D

look for the carrier Hawaiian Airlines (HA) first and then number of flights that arrives on time for HA/ total number of flights HA has

Part E

look for OO and WN in table

add up all flights made ( all airports) for OO and WN

add up all flights on time for OO and WN

divide flights on time by all flights made

Hope this will help you. :)