1) Two coins are tossed.What is the probability of getting one head and one tail ? WKT ANS IS 2/4=1/2
2) A coin is tossed twice.What is the probability of getting one head and one tail ? WKT ANS is 2/4=1/2
3) A bag has 3 red balls and 4 green balls.Two balls are picked from the bag randomly.What is the probability of getting one red and one green ? ANS GIVEN IS (3/7*4/6)....WHY NOT (3/7*4/6)+(4/7*3/6)
I MEAN WHY WE ARE CONSIDERING THE ORDER FOR 1) AND 2) BUT NOT FOR 3)
THAT IS IN 1) AND 2) ......{HEAD,TAIL} AND {TAIL,HEAD} ARE TREATED DIFFERENTLY BUT IN 3) BOTH {R,G} AND {G,R} ARE TREATED SAME......WHY ???
please explain I am getting confused here ....