SOLUTION: In a group of 100 batteries, 30 are dead. Use your calculator to find the probability that if you pick 20 batteries, more than 2 will be dead.

Algebra ->  Probability-and-statistics -> SOLUTION: In a group of 100 batteries, 30 are dead. Use your calculator to find the probability that if you pick 20 batteries, more than 2 will be dead.      Log On


   

Question 320192: In a group of 100 batteries, 30 are dead.
Use your calculator to find the probability that if you pick 20 batteries, more than 2 will be dead.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
In a group of 100 batteries, 30 are dead.
Use your calculator to find the probability that if you pick 20 batteries, more than 2 will be dead.
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P(a single battery is dead) = 0.3
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P(3<= x <=30) = 1 - P(0<= x <=2) = 1 - binomcdf(20,0.3,2) = 0.9645
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Cheers,
Stan H.
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