SOLUTION: If I randomly choose 10 tests, what is the probablity that atleast 8 tests have passing grades?

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Question 297757: If I randomly choose 10 tests, what is the probablity that atleast 8 tests have passing grades?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
That depends on the probability of a random test having
a passing grade.
Cheers,
Stan H.