4. The monthly profits of Hi-Mark corporation were organized into a frequency distribution. The mean of monthly profits was computed to be $105 600, the median $104 700, and the mode $104 200. (a) Sketch the profit in the form of a smoothed frequency polygon. Note the location of the mean, median, and mode on the X-axis. (b) Is the distribution symmetrical, positively skewed, or negatively skewed? Explain