Given that a parking lot contains 100 cars, k of which happen to be lemons.
This is a conditional probability question.
Let event A be that a car is tested and event B be that a car is lemon.
The probability that a car is lemon is given by
The probability that a car is tested is given by
The probability that a car is lemon and it is tested is given by
For a conditional probability, the probablility of event A given event B is given by:
Therefore, the probability that a car is lemon, given that it is tested is given by.
This is a conditional probability question.
Let event A be that a car is tested and event B be that a car is lemon.
The probability that a car is lemon is given by
The probability that a car is tested is given by
The probability that a car is lemon and it is tested is given by
For a conditional probability, the probablility of event A given event B is given by:
Therefore, the probability that a car is lemon, given that it is tested is given by.