. Computer keyboard failures can be attributed to electricaldefects or mechanical
Chapter 2, Problem 34(choose chapter or problem)
. Computer keyboard failures can be attributed to electricaldefects or mechanical defects. A repair facility currently has25 failed keyboards, 6 of which have electrical defects and19 of which have mechanical defects.a. How many ways are there to randomly select 5 of these keyboardsfor a thorough inspection (without regard to order)?b. In how many ways can a sample of 5 keyboards beselected so that exactly two have an electrical defect?c. If a sample of 5 keyboards is randomly selected, what isthe probability that at least 4 of these will have amechanical defect?
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