The probability that a vehicle entering the luray
caverns has canadian license plates is 0.12; the
probability that it is a camper is 0.28; and the probability
that it is a camper with canadian license plates
is 0.09. what is the probability that
(a) a camper entering the luray caverns has canadian
license plates?
(b) a vehicle with canadian license plates entering the
luray caverns is a camper?
(c) a vehicle entering the luray caverns does not have
canadian plates or is not a camper?

Probability that a vehicle entering the Luray Caverns has Canadian license plates = 0.12
Probability that it is a camper = 0.28
Probability that it is a camper with Canadian license plates = 0.09

a. Probability that a camper entering the Luray Caverns has Canadian
license plates = 0.09

b. Probability that a vehicle with Canadian
 license plates entering the Luray Caverns is a camper = 0.09/0.12
                                                                                        = 0.75

c. Probability that a vehicle entering the Luray Caverns
does not have Canadian plates or is not a camper = 0.88 + 0.72 - 0.81
                                                                                 = 0.80