Inside, the school smelled smartly of varnish and wood smoke from the potbellied stove. On gloomy days, not unknown in upstate New York in this region south of Lake Ontario and east of Lake Erie, the windows emitted a vague, gauzy light, not much reinforced by ceiling lights. We squinted at the blackboard, that seemed far away since it was on a small platform, where Mrs. Dietz's desk was also positioned, at the front, left of the room. We sat in rows of seats, smallest at the front, largest at the rear, attached at their bases by metal runners, like a toboggan; the wood of these desks seemed beautiful to me, smooth and of the red-burnished hue of horse chestnuts. The floor was bare wooden planks. An American flag hung limply at the far left of the blackboard and above the blackboard, running across the front of the room, designed to draw our eyes to it avidly, worshipfully, were paper squares showing that beautifully shaped script known as Parker Penmanship.
The mean and median can only be used with numerical data. The mode can be used with both numerical and nominal data , or data in the form of names or labels. Eye color, gender, and hair color are all examples of nominal data. The mean is the preferred measure of central tendency since it considers all of the numbers in a data set; however, the mean is extremely sensitive to outliers , or extreme values that are much higher or lower than the rest of the values in a data set. The median is preferred in cases where there are outliers, since the median only considers the middle values.
“The yellow mittens I made in seventh-grade home economics proved that I dreamed in color. For the unit on knitting, we were 1 supposed to turn in a pair of mittens. The two hands had to be precisely the same size so that when we held them together, palm to palm, no extra stitches would stick out from the thumb, the tip of the fingers, or the cuff. Somewhere between making the fourth and the fifth mitten to fulfill this requirement, I dreamed that the ball of yellow yarn in my bag had turned green. Chartreuse, leaf, Granny Smith, lime, neon, acid green. The brightness was electric. I woke up knowing that I was, once again, doomed for a D in home ec.”