Question

two urns contain white balls and yellow balls. the first urn contains 5 white balls and 8 yellow balls and the second urn contains 9 white balls and 2 yellow balls. a ball drawn at random from each urn. what is the probability that both are white

Answer 1

So the question is asking to calculate the probability that both are white, and base on my own calculation and further computation, I would say that the probability would be 31.5%. I hope you are satisfied with my answer and feel free to ask for more if you ask for more 

Answer 2

Answer: 31.5%

Step-by-step explanation:

Let A be the event that a ball is drawn from the first urn is  white

Then $P(A)=\frac{number\ of \ white\ balls }{total\ balls}=\frac{5}{13}$

Let B be the event that a ball is drawn from the second urn is  white

Then $P(B)=\frac{number\ of \ white\ balls }{total\ balls}=\frac{9}{11}$

Since both the events are independent.

Therefore, the probability that both are white=$P(A)\times P(B)$

$=\frac{5}{13}\times\frac{9}{11}=\frac{45}{143}$

In percent,

$\frac{45}{143}\times100=31.46\%\approx31.5\%$