Using it's concept, it is found that the probability that a randomly selected student is in music/drama is:
P(Music/Drama) = 0.25.
What is a probability?
A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem, the number of students is given by:
N = 20 + 7 + 3 + 20 + 13 + 2 + 25 + 5 + 5 = 100.
Of those, the number involved in music/drama is:
D = 7 + 13 + 5 = 25.
Hence the probability is given by:
p = 25/100 = 0.25.
More can be learned about probabilities at https://brainly.com/question/14398287
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