JEE Advance - Mathematics (1998 - No. 12)
If $$\overline E $$ and $$\overline F $$ are the complementary events of events $$E$$ and $$F$$ respectively and if $$0 < P\left( F \right) < 1,$$ then
$$P\left( {E/F} \right) + P\left( {\overline E /F} \right) = 1$$
$$P\left( {E/F} \right) + P\left( {E/\overline F } \right) = 1$$
$$P\left( {\overline E /F} \right) + P\left( {E/\overline F } \right) = 1$$
$$P\left( {E/\overline F } \right) + P\left( {\overline E /\overline F } \right) = 1$$
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