TV Shows
Probability
Level
1
An audience research showed that: 1000 people watch the TV show A, 1500 the TV show B, and 250 these two TV shows. How many people were surveyed?
The answer is 2250.
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1 solution
TV show A -----------------> 1000
TV show B -----------------> 1500
Both A+B -------------------> 250
Thus, total number of people surveyed is 1000+1500-250
That is 2250.