7) About 55% of all small businesses in the united states have a website. You randomly select 10 small businesses.   a) What is the probability that exactly 4 of them have a website? b) What is the probability that at least 8 of them have a website?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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7) About 55% of all small businesses in the united states have a website. You randomly select 10 small businesses. 

 a) What is the probability that exactly 4 of them have a website?

b) What is the probability that at least 8 of them have a website?

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