in case u r talkin bout drawin aftr replacin d marbles prob of drawin a white marble = 3/10 in case 3 draws r neede, we get net prob = 3/10 * 3/10 * 7/10
i case 5 draws r neede, we get net prob = (3/10)^4 * 7/10
"Many of the things you can count,dont count....
Many of the things you cant count,really do count...."-Albert Einstein
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them"-William Bragg
"An inexplicable fact is infinitely preferable to an incomprehensible mystery"-F. Soddy
RISHIPRATIM MAZUMDAR
NIT DURGAPUR
1ST YEAR,ELECTRONICS AND COMMUNICATIONS
Moderation Team
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