Quality control. In a drawer of 12 capacitors, there are 3 defective ones. Two capacitors are taken out from the drawer, one at a time without replacement. Find a) the probability that the first capacitor is defective b) the probability that the second capacitor is defective knowing that the first one is defective c) the probability that both capacitors are defective d) the probability that the second capacitor is defective

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?