46.94%
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To find the probability that a movie selected randomly from the given categories is a romance or a comedy, we need to add the number of romance movies and the number of comedy movies, and then divide the result by the total number of movies.
There are 310 romance movies and 150 comedy movies. Adding these together gives us 460 movies.
The total number of movies in all categories is:
To find the probability, we divide 460 by 980, which gives us a probability of 0.4694, or 46.94%.