Belief in UFOs A survey found that 5% of people believe that they have seen a UFO. Choose a sample of 15 people at random. Find the probability of the following. Round intermediate calculations and final answers to at least three decimal places. (a) At least  3 people believe that they have seen a UFO  P(at least 3 people believe that they have seen a UFO) =

MATLAB: An Introduction with Applications
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I am not understanding this. Can I please get some help? i have done this type of problem so many times. 

Belief in UFOs A survey found that 5% of people believe that they have seen a UFO. Choose a sample of 15 people at random. Find the probability of the following. Round intermediate calculations and final answers to at least three decimal places.

(a) At least  3 people believe that they have seen a UFO

 P(at least 3 people believe that they have seen a UFO) =


 
 
 
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