In the past year, 13% of businesses haveeliminated jobs. If five businesses are

Question

In the past year, 13% of businesses haveeliminated jobs. If five businesses are selected at random, findthe probability that at least three have eliminated jobs during thelast year.

n=5, p=0.13, x=3,4,5

P(3)=5!/(5-3)!3!·(0.13)³(1-0.13)²+P(4)=5!/(5-4)!4!·(0.13)4(1-0.13)¹+P(5)=5!/(5-5)!5!·(0.13)5(1-0.13)°

5!/2!3!·(0.13)³(0.87)²+5!/1!4!·(0.13)(0.87)¹+5!/0!5!·(0.13)5(0.87)°=0.018

n=5, p=0.13, x=3,4,5

P(3)=5!/(5-3)!3!·(0.13)³(1-0.13)²+P(4)=5!/(5-4)!4!·(0.13)4(1-0.13)¹+P(5)=5!/(5-5)!5!·(0.13)5(1-0.13)°

5!/2!3!·(0.13)³(0.87)²+5!/1!4!·(0.13)(0.87)¹+5!/0!5!·(0.13)5(0.87)°=0.018

Explanation / Answer

It adds up :
5*4/2*.002187*.7569+5*.0002856*.87+1*.000037*.87 :
.016629+.00124+.00032=.018189˜.018 It adds up :
5*4/2*.002187*.7569+5*.0002856*.87+1*.000037*.87 :
.016629+.00124+.00032=.018189˜.018 :
I added the numbers you had :
P(3)+P(4)+P(5) :
the numbers in red match , yellow , andgreen               Please Rate It adds up :
5*4/2*.002187*.7569+5*.0002856*.87+1*.000037*.87 :
.016629+.00124+.00032=.018189˜.018 :
I added the numbers you had :
P(3)+P(4)+P(5) :
the numbers in red match , yellow , andgreen               Please Rate :
the numbers in red match , yellow , andgreen               Please Rate

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