TAT102
CHAPTER 1,2/CLO 1,2
9. The probability that an automobile being filled with gasoline also needs an oil change is 0.25;
the probability that it needs a new oil filter is 0.40; and the probability that both the oil and the
filter need changing is 0.14.
a) If the oil has to be changed, what is the probability that a new oil filter is needed?
b) If a new oil filter is needed, what is the probability that the oil has to be changed?