answer all the questions

When is it best to use the mode as a measure of center? Describe what type of data would lead you to choosing the mode over the mean or median. [1 sentence] If a set of numbers has a standard deviation of zero, what can you say about the numbers? [1 sentence] If a set of grades for a class has a large range and a small standard deviation, what can you say about the class? Include an interpretation that is specific to grades in a class. [2 sentences Why is the median less affected by skewed data than the mean? [2 sentences] Is most data likely to be skewed or symmetric? There is no right or wrong here but discuss and take a side on the issue. [2 sentences]