Question

There are 2red, 2white and 2green balls of the same size in a box. One ball
is drawn at random from the box. 'A' is the event of not getting a white ball.
Solution:
The sample space
S= ____,_,_}
... n(S) =
A is the event of not getting a white ball
· A={-} :: n (A) = 0​

Answer 1

A box contain 1 red and 3 identical white balls 

Let R denote the red ball and W denote the identical white ball

The 2 ball selected at random in succession without replacement

Sample space is

S={RW,WR,WW}

1st ball                   2nd ball

  R                               W

  W                              R

  W                              W

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