in a group of 80 persons, 30 like western music,40 like indian music, 10 like both. find the probability that a person selected at random from this group likes only one type of music
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Answered by
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Answer:7/8
Step-by-step explanation: P(single type)= (40+30)/80=70/80=7/8
Answered by
1
Answer: Probability that the selected person likes only one type of music = 7/8
Step-by-step explanation:
Given,
Total no. of people = 80
No. of people who like western music = 30
No. of people who like Indian music = 40
No. of people who like both = 10
Here, only 10 people like both type of music. This clearly means that the rest of the people like only one type of music i.e. either western or Indian.
Therefore,
Probability that the selected person likes only one type of music
= (Total no. of people - No. of people who like both) / Total no. of people
= (80 - 10) / 80
= 70 / 80
= 7/8
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