A random sample of computer users was asked which browser they primarily relied on for surfing the Internet and whether this browser was installed on a PC or on a Mac computer. The following contingency table shows these results. Browser PC Mac Internet Explorer 18 33 Firefox 12 24 Chrome 15 30 Safari 3 9 Other 3 3 Given that the randomly selected computer was a PC, the probability that the computer used the Firefox browser is the closest to __________blank. Multiple Choice 0.235 0.443 0.361 0.320