Exercise

Joint probabilities

In this exercise we're going to calculate joint probabilities using the following table:

Joint probability table

Take the values from the table, create variables, and calculate the probability of the event in each step.

Instructions 1/3

XP

1
Calculate the probability that the engine and gear box both work.
2
Calculate the probability that one fails -- either engine or gear box -- but not both.
3
What is the probability that either both work or both fail?