Question

1 point) Cotton liners used in the production of rocket propellant are subjected to a nitration process that enables the cotton fibers to go into solution. The process is 80% effective in that the material produced can be shaped as desired in a later processing stage with probability 0.8. What is the probability that exactly 22 lots will be produced in order to obtain the fourth defective lot? (Hint: in this case a "success" is obtaining a defective lot).

Answer 1

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