Question

某人投篮的命中率为p(0

Answer 1

概率=C(10,4)p^4(1-p)^6=p*[10*9*8*7p^3(1-p)^6]/[4*3*2]=p[210p^3(1-p)^6],

f(p)=210p^3(1-p)^6,00,f(p)单调递增.1/3