Let A ,   B and C be three events, which are pair-wise independent and E ¯ denotes the complement…

Let A, B and C be three events, which are pair-wise independent and E¯ denotes the complement of an event E. If PABC=0 and PC>0, then PA¯B¯|C is equal to
  1. PA¯-PB
  2. PA¯-PB¯
  3. PA¯+PB¯
  4. PA+PB¯

Solution

PA¯B¯|C=PA¯B¯CPC

=PC-PAC-PBC+PABCPC

=PC-PAPC-PBPCPC

=1-PA-PB

=PA¯-PB or PB¯-PA

Asked in: JEE Main 2018 (16 Apr Online)

Practice more Probability questions on Aicharya