Choosing Best Measure of Center or Variability

Which measure of center best represents this set of data?
12, 13, 11, 16, 31, 14, 10, 15

• Mean
• median
• mode

Which measure of center best represents this set of data?
red, blue, red, yellow, red, green, black, red, white, red, red

• Mean
• median
• mode

The salary of the employees in the office were $15,000; $18,000; $16,000; $14,000; $90,000; and $17,000.  What is the best measure of the central tendency of the salaries?

• Mean
• Median
• Mode
• Range

What measure of center is best to use when we have outliers?

• mean

• median

• mode

• range

If you want to find out which color MOST students favor, you should use which measure of center?

• Mode

• Median

• Mean

• Range

When analyzing categorical data, the best measure of center is the:

• mean

• median

• mode

• range

When analyzing numerical data, the best measure of center with NO outlier is:

• mean

• median

• mode

• range

When analyzing numerical data, the best measure of center with an outlier is:

• mean

• median

• mode

• range

What is an outlier?

• A value that is much less or much greater than the other values in a data set.
• The difference between the upper and lower quartiles of a data set.
• The mean of the distances from each data value in a set to the mean of a set.
• The difference between the greatest and least numbers in a data set.

What would be the best measure of center for the data set?
5,6,7,3,4,4,5,3,2,6

• median
• mode
• mean
• range