In a box there are 9 balls, 5 of them are white balls and 4 others are red balls so i decided to take 3 balls from the box. What is the probabilty i get at least 1 red ball?
In a box there are 9 balls, 5 of them are white balls and 4 others are red balls so i decided to take 3 balls from the box.
What is the probabilty i get at least 1 red ball?
My answr see here: https://web2.0calc.com/questions/help_72283#r1