Question
Thu January 24, 2013 By: Prashaant Malaviya
 

what is the meaning of without replacement and with replacement in probability questions?

Expert Reply
Thu January 24, 2013
in replacement the total no. of elements remain same in sample space after each event.but without replacement it changes.
for ex-
if we draw 2 red  cards from a pack of 52 cards
first without  replacement
probability will be
(26/52)*25/52
in case of replcement it will be
(26/52)^2
Ask the Expert