Question 1196981: In a school all the students listen to some kind of music. Of those, 60% listen to rock music, 20% listen to dance
music, and 10% listen to both types of music. Determine the probability that a student listens to music other than rock
or dance music given that they listen to music.
Answer by ikleyn(52780)   (Show Source):
You can put this solution on YOUR website! .
In a school all the students listen to some kind of music. Of those, 60% listen to rock music, 20% listen to dance
music, and 10% listen to both types of music. Determine the probability that a student listens to music other than rock
or dance music given that they listen to music.
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The percentage of those who listen to rock or dance music is
60% + 20% - 10% = 70% .
Hence, 100-70% = 30% listen other than rock or dance music.
So, the ANSWER to your question is
P = 30% = 0.3.
Solved.
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