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svlad2 [7]
3 years ago
9

A survey revealed that 60% of people are entertained by reading books, 50% are entertained by watching TV, and 20% are entertain

ed by watching both books and TV. What is the probability that a person will be entertained by books or TV
Mathematics
1 answer:
Rainbow [258]3 years ago
4 0

Question seem incorrect because 60%,50% and 20% sum up to more than a 100% therefore we've made a little correction

Answer:

0.8

Step-by-step explanation:

Probability = number of favorable outcomes/number of outcomes

Given that 30% are entertained by reading books

50% are entertained by watching TV

20% are entertained by reading books and watching TV

The probability that a person will be entertained by books or TV =

30/100+50/100= 3/10+5/10

=8/10

=0.8

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