A manufacturing company has 5 identical machines which procduce nails.?

The probability that any machine will break down on any given day is 0.10. Define a random variable x to be the number to machines which will break down in a day. Compute the probability that exact 4 machines will break down.





a. .00032


b. .00038


c. .00040


d. .00049


e. none of the above answers is correct

A manufacturing company has 5 identical machines which procduce nails.?
e. 0.00045 (none of the above)





X follows a binomial distribution with parameters p=0.10 and n=5.





P(X=4) = 5!/(4!1!) 0.10^4 0.90^1 = 0.00045