SOLUTION: an olympic archer can hut the bullseye an average of 9 times out of 10. The probability of scoring 18 or more bullseyes from 20 shots is?

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Question 1100295: an olympic archer can hut the bullseye an average of 9 times out of 10. The probability of scoring 18 or more bullseyes from 20 shots is?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
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P=P%2818%29%2BP%2819%29%2BP%2820%29
P=0.6769