A six-sided die is rolled eleven times. What is the probability that the die will show an even number exactly nine times?
1 answer:
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Write the equations: 
Substitute for h:
Solve for s:
There were 280 downloads of the standard version. There were 1120 downloads of the high-quality version.
Substitute for h:
Solve for s:
There were 280 downloads of the standard version. There were 1120 downloads of the high-quality version.