A Gallup survey indicated that 72% of college graduates would prefer to start their own business rather than work for someone else. A random sample of 600 college graduates is obtained. a. What is the mean and standard deviation of the sampling distribution of the proportion

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Abcd is a parallelogram. the diagram is not drawn to scale. if m

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?