SOLUTION: I'll calculator contains four batteries each battery has a 90% chance of lasting full year find the probability that all for batteries last a full year. Using this : nCx(Px)(Qn-x)
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Question 1029057: I'll calculator contains four batteries each battery has a 90% chance of lasting full year find the probability that all for batteries last a full year. Using this : nCx(Px)(Qn-x)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
4C4(.9)^4(.1)^0
This is 0.9)^4=0.6561
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