According to a recent poll about 60% of vaccinated Americans say they still wear a mask in public indoor settings.  In a group of 5 vaccinated Americans:  a-The probability that exactly 4 wear a mask is ..... what %. b-The probability that at least 4 wear a mask is  ..... what  %. c-The probability that fewer than 4 wear a mask is  ..... what  %.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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1) According to a recent poll about 60% of vaccinated Americans say they still wear a mask in public indoor settings.  In a group of 5 vaccinated Americans: 

a-The probability that exactly 4 wear a mask is ..... what %.

b-The probability that at least 4 wear a mask is  ..... what  %.

c-The probability that fewer than 4 wear a mask is  ..... what  %. 

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