What is the probability that you will select someone from the survey that does not watch nbc? explain.

45 people are surveyed. 12 do not watch either channel and 20 watch only nbc. the number of people hat don’t watch nbc is 12 + 20 = 32. probability of selecting someone who doesn’t watch nbc is 32/45 or 71.11%

45 people are surveyed. 4 do not watch either channel and 15 watch only abc. the number of people hat don’t watch nbc is 4 + 15= 19. probability of selecting someone who doesn’t watch nbc is 19/45 or 42.22%

45 people are surveyed. 9 do not watch either channel and 20 watch only nbc. the number of people hat don’t watch nbc is 9 + 20 = 29. probability of selecting someone who doesn’t watch nbc is 29/45 or 64.44%

45 people are surveyed. 4 do not watch either channel and 20 watch only abc. the number of people hat don’t watch nbc is 4 + 20 = 24. probability of selecting someone who doesn’t watch nbc is 24/45 or 53.33%