the chips shown are placed in a bag and drawn at random, one by one, without replacement. what is the…

the chips shown are placed in a bag and drawn at random, one by one, without replacement. what is the probability that the first two chips drawn are both yellow? the probability is (simplify your answer.)

the chips shown are placed in a bag and drawn at random, one by one, without replacement. what is the probability that the first two chips drawn are both yellow? the probability is (simplify your answer.)

Answer

Explanation:

Step1: Count total and yellow chips

There are 12 chips in total and 3 yellow chips.

Step2: Calculate first - draw probability

The probability of drawing a yellow chip on the first draw is $\frac{3}{12}$.

Step3: Calculate second - draw probability

After drawing one yellow chip on the first draw, there are 2 yellow chips left and 11 chips in total. So the probability of drawing a yellow chip on the second draw is $\frac{2}{11}$.

Step4: Calculate combined probability

By the multiplication rule for independent events (in the context of non - replacement), the probability that the first two chips drawn are both yellow is $\frac{3}{12}\times\frac{2}{11}=\frac{6}{132}=\frac{1}{22}$.

Answer:

$\frac{1}{22}$