The probability that the balls are drawn is white and white will be 19/39.
The probability of favorable events to the total number of occurrences.
A stack contains 20 white balls, 8 green balls, and 12 brown balls. 2 balls are drawn at random without replacement from the bag.
Then the probability that the balls are drawn is white and white will be
The total number of stacks will be
⇒ 20 + 8 + 12
⇒ 40
Then the total event will be
Total event = ⁴⁰C₂
Total event = 780
Then the Favorable event will be
Favorable event = ²⁰C₁ x ¹⁹C₁
Favorable event = 20 x 19
Favorable event = 380
Then the probability will be
P = 380 / 780
P = 19/39
More about the probability link is given below.
https://brainly.com/question/795909
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