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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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NERD NERD
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6 years ago
A manufacturing company has 5 identical machines that produce nails. The probability that a machine will break down on any given day is .1 . Define a random variable X to be the number of machines that will break down in a day.
 a. What is the appropriate probability distribution for X?
  b. Compute the probability that 4 machines will break down.
  c. Compute the probability that at least 4 machines will break down.
  d. What is the expected number of machines that will break down in a day?
  e. What is the variance of the number of machines that will break down in a day?
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sophiakhalid12sophiakhalid12
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6 years ago
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NERD Author
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6 years ago
Smart ... Thanks!
nsak
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Yesterday
Thanks for your help!!
Helpmeplease11
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2 hours ago
Thanks
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