d) P ( B ∣ ¯¯¯¯ A ) = 7 / 17 .

d) Vì \({\rm{n}}({\rm{B}} \cap \overline {\rm{A}} ) = 16,n(\overline {\rm{A}} ) = 23\) nên \({\rm{P}}({\rm{B}}\mid \overline {\rm{A}} ) = \frac{{{\rm{n}}({\rm{B}} \cap \overline {\rm{A}} )}}{{{\rm{n}}(\overline {\rm{A}} )}} = \frac{{16}}{{23}} \ne \frac{7}{{17}}.\)

=> Sai