The means and mean absolute deviations of monthly snowfall during the winter months in two cities are shown in the table below.
the difference of the means is found and then compared to each of the mean absolute deviations. which is true?

a. the difference between the means is about equal to the mean absolute deviation of the data sets.

b. the difference between the mean is about 2 times the mean absolute deviation of the data sets.

c. the difference between the mean is about 4 times the mean absolute deviation of the data sets.

d. the difference between the means is about 5 times the mean absolute deviation of the data sets.

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

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?

Bugs bunny was 33 meters below ground, digging his way toward pismo beach, when he realized he wanted to be above ground. he turned and dug through the dirt diagonally for 80 meters until he was above ground