SOLUTION: In a survey of adults who follow more than one sport, 30% listed football as their favorite sport. You survey 15 adults who follow more than one sport. What is the probability roun

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Question 1089966: In a survey of adults who follow more than one sport, 30% listed football as their favorite sport. You survey 15 adults who follow more than one sport. What is the probability rounded to the nearest tenth that fewer than 4 of them will say that football is their favorite sport?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P%28X%29=C%2815%2CX%29%2A%280.30%29%5EX%2A%281-0.30%29%5E%2815-X%29
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P%28X%3C4%29=P%280%29%2BP%281%29%2BP%282%29%2BP%283%29
P%28X%3C4%29=0.00475%2B0.03052%2B0.09156%2B0.17004
P%28X%3C4%29=0.29687