Comparing Measures of Center

Find the mean:
3.8, 4.2, 4.0, 4.2, 4.2

• 4.08

• 20.4

• 5.1

• 4.2

A  number that is either MUCH larger or MUCH smaller than the rest of the numbers is a(n)

• outlier

• inlier

• lier

• I'm lying

What is the median?

• The number in the middle

• The difference between the highest and lowest values

• The number that occurs the most

• The average

What is the mean?

• The number that occurs the most

• The number in the middle

• The difference between the highest and lowest values

• The Average

What is the mode?

• Number that occurs the most

• The Average

• The difference between the highest and lowest values

• The Number in the middle

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 is the most appropriate measure of central tendency for

favorite t.v. show

• mode

• mean

• median

Your math grades are 90, 85, 0, 90, 80, 100, and 90.  Which grade is the outlier?

• 90

• 0

Which measure of central tendency is MOST EASILY affected by outliers?

• mean

• median

• mode

Find the mean:
28, 18, 19, 18, 17

• 20

• 18

• 11

• 19