SOLUTION: A pet supplier has a stock of parakeets of which 10% are blue parakeets. A pet store orders 3 parakeets from this supplier. If the supplier selects the parakeets at random, what is

Algebra ->  Probability-and-statistics -> SOLUTION: A pet supplier has a stock of parakeets of which 10% are blue parakeets. A pet store orders 3 parakeets from this supplier. If the supplier selects the parakeets at random, what is      Log On


   



Question 1119242: A pet supplier has a stock of parakeets of which 10% are blue parakeets. A pet store orders 3 parakeets from this supplier. If the supplier selects the parakeets at random, what is chance that the pet store gets exactly one blue parakeet.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
3 ways to get exactly 1, the first, second, or third
probability of each of these is the same 0.1*0.9*0.9, or 0.081 for one and 0.243 altogether.