Standard Deviation Visually Represented in a Dotplot

Move the dots around in the dotplot below and see how it affects the mean, median, and standard deviation.
Standard Deviation Visually Represented in a Dotplot
What happens if you move the orange dot to 17? How does this affect the standard deviation?[br]What happens if you move the purple dot to 9? What if you move it to 1?[br]Highlight all of the dots and drag them 5 spaces to the left? How does this change the mean? How does it change the standard deviation? Why does it affect one statistic but not the other?[br]Dragging the dots around, create a sample with the smallest possible standard deviation. How small were you able to make the standard deviation? How did you accomplish this?[br]How big could you make the standard deviation if the minimum value in the sample is 0 and the maximum is 21? Explain.

Information: Standard Deviation Visually Represented in a Dotplot