Approximately 10% of American High School students drop out of school before graduation. Choose 10 students entering High School at random. Find the probability that at least 6 will graduate.

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we know Approximately 10% of American High School students drop out of school before graduation

so :

the probability that at last 6 will graduate is :

P(6 <= x <= 10) = 1 - binomcdf(10,0.100,5) = 0.0001735

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