If you take p= 0.4, q= 0.6, then the solution is as follows. Probability(more than 7 of them weight 65 pounds or more) = P(8) + P(9) + P(10). Further, P(8) == = 0.010617; P(9) = = = 0.001573; P(10) = = = 0.00105. I leave it to you to add these numbers and to get the numerical value of the answer.