Final answer:
The probability of Pat being either in the bathroom or the living room is found by adding together the individual probabilities, 45% for the living room and 5% for the bathroom, which gives a total probability of 50%.
Step-by-step explanation:
The question asks about the probability of Pat being either in the bathroom or the living room in Pat's residence, which has more than four rooms and given probabilities for being in different rooms. To find the probability of Pat being in either the bathroom or the living room, we can simply add the individual probabilities for these two events, since they are mutually exclusive (cannot happen at the same time).
The probability Pat is in the living room is given as 45%, and the probability Pat is in the bathroom is given as 5%. To find the combined probability of these two events (either event happening), we add them together:
Probability of being in the living room or bathroom = Probability of being in the living room + Probability of being in the bathroom
Probability of being in the living room or bathroom = 45% + 5% = 50%
Therefore, the probability of Pat being either in the bathroom or the living room is 50%.