SOLUTION: As of March 2018 , the unemployment rate is 4.1, which means that there is a 4.1 % probability that a working age adult is unemployed. 7. If we surveyed 100 adults, what is

Algebra ->  Probability-and-statistics -> SOLUTION: As of March 2018 , the unemployment rate is 4.1, which means that there is a 4.1 % probability that a working age adult is unemployed. 7. If we surveyed 100 adults, what is       Log On


   

Question 1118959: As of
March 2018
, the unemployment rate is 4.1, which means that there is a 4.1 % probability that
a working age adult is unemployed.
7.
If we surveyed 100 adults, what is the probability that exactly 5 of
them are unemployed?
8.
What is the probability that no more than 2 are unemployed?
Answer by ikleyn(52910) About Me  (Show Source):
You can put this solution on YOUR website!
.
As of March 2018, the unemployment rate is 4.1, which means that there is a 4.1 % probability that a working age adult is unemployed. 


7.  If we surveyed 100 adults, what is the probability that exactly 5 of them are unemployed?


    This probability is  C%5B100%5D%5E5%2A0.041%5E5%2A%281-0.041%29%5E95 = %28%28100%2A99%2A98%2A97%2A96%29%2F%281%2A2%2A3%2A4%2A5%29%29%2A0.41%5E5%2A0.959%5E95 = use your computer = 0.1635 = 16.35%.



8.  What is the probability that no more than 2 are unemployed?


    %281-0.041%29%5E100 + C%5B100%5D%5E1%2A0.041%2A%281-0.041%29%5E99 + C%5B100%5D%5E2%2A0.041%5E2%2A%281-0.041%29%5E99 = 0.959%5E100+%2B+100%2A0.041%2A0.959%5E99+%2B+4950%2A0.041%5E2%2A0.959%5E98 = use your computer = 0.2177 = 21.77%.