SOLUTION: The cadet engineers of a service company consists of 60% electrical engineers and 40% civil engineers. A random sample of 8 engineers is selected. What is the probability that am

Algebra ->  Probability-and-statistics -> SOLUTION: The cadet engineers of a service company consists of 60% electrical engineers and 40% civil engineers. A random sample of 8 engineers is selected. What is the probability that am      Log On


   



Question 1185152: The cadet engineers of a service company consists of 60% electrical engineers and 40% civil engineers. A random sample of 8 engineers is selected. What is the probability that among the engineers in the sample at least 7 are electrical engineers?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
What is the probability that all 8 are EE? That is 0.6^8=0.0168
The probability that 7 are EE is 8*0.6^7*0.4^1=0.0896
That sum is 0.1064
-