Question

there are 2 identical bottles. one bottle contains 2 red balls. a bottle is selected at random and a single ball is drawn

what is thwe probability that the bll is red?

Answer 1

Since you didn't mention any other colors in the bottles, there's a 100% chance that the ball that is drawn is red.

Answer 2

case 1 :
both bottle give red balls
1/2 * 1/2
= 1/4

case 2 :
one bottle gives red ball
1/2 * 1
=1/2

Answer 3

sorry because of misunderstood of the question.
The above answer is wrong

Answer 4

ok....all right