SOLUTION: a survey revealed that 42% of people are entertained by reading.books, 33% are entertained by watching TV, and 25% are entertained by books and TV. What is the probably that a pers

Algebra ->  Probability-and-statistics -> SOLUTION: a survey revealed that 42% of people are entertained by reading.books, 33% are entertained by watching TV, and 25% are entertained by books and TV. What is the probably that a pers      Log On

 

Hi,

42% of people are entertained by reading.books, 33% are entertained by watching TV, 

and 25% are entertained by books and TV

P(either books 'or' tv) = .42 + .33 - .25 = .50