business of math

Question

The probability that a vehucle entring the luray canverns has candian license plates is 0.12;the probability that it is a camper is

0.28;and the porbability that it is a cmper with canadian license plates is 0.09.What is the probability that.

1) A camper entering the Luray Caverns has Canadian license Plates.

(1) A vehicle with Canadian license plates entering the Luray Caverns is a

camper.

(ii) A vehicle entering the Luray Caverns does not have Canadian plates or

is not a camper.​

Answer 1

P(camper) = .28

P(canadian license) = .12

P(camper&Canadian license) = .09

I) P(a camper if it has Canadian license) = 9/12= 3/4 = 75% chance

ii) P(not camper & not Canadian) = .069 = 69/100= 69% chance

draw a Venn diagram. Use Bayes theorem