2. A bag contains 5 white and 3 black balls. Another bag contains 4 white and 5 black balls. From any one of these two bags, two balls are drawn at random at one time. What is the probability that the two drawn balls are white and black?

Question

2.	A bag contains 5 white and 3 black balls. Another bag contains 4 white and 5 black balls. From any one of these two bags, two balls are drawn at random at one time. What is the probability that the two drawn balls are white and black?

anonymous · Answer

What is the probability that the two drawn balls are white and black?

anonymous · Answer

4.	A hyperbola centered at the origin and having foci on the x-axis passes through the point 
(-25/3 , 4). The length of the latus rectum is 18/5 units. What is the eccentricity of the hyperbola?