A bag contains 2 white 3 black and 4 green balls if two balls are drawn from the bag without replacement one after another find the probability that first ball ls white and second ball is black
Answers
Answered by
0
TOTAL BALLS =2+3+4=9
THE PROBABILITY TO PICK FIRST BALL AS WHITE =NO OF WHITE BALLS /(BY)TOTAL
NO OF BALLS=2/9
AS THERE IS NO REPLACEMENT OF THE BALLS WHICH WERE ALREADY PICKED,NEXT TOTAL NO OF BALLS ,FOR THE SECOND PICK UP =9-1=8
THE PROBABILITY TO PICK SECOND BALL AS BLACK =3/8
THEREFORE,
2/9,3/8
Similar questions