[[sum n=4 to 22 of [[22 choose n]0.3^n*0.7^[22-n]]] * [8 choose 2]*0.3^2*0.7^6]/0.923405[[sum n=4 to 22 of [[22 choose n]0.3^n*0.7^[22-n]]] * [8 choose 2]*0.3^2*0.7^6]/0.923405

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