X ~ Binomial (n,p)
Where n = 12 , p = 0.63
P(X) = nCx px ( 1 - p)n-x
So,
P( X >= 10) = P (X = 10) + P (X = 11) + P (X = 12)
= 12C10 0.6310 0.372 + 12C11 0.6311 0.371 + 12C12 0.6312 0.370
= 0.1205
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