In a certain community, the median per-family annual income is $80,000. The
Mean per-family income is $100,000, whereas the mode is $71,000.
-if a new family were to move into the community with an annual income of $295,000, this would most affect
A) the mean
B) the median
C) the mode
D) all of these

Question

In a certain community, the median per-family annual income is $80,000.  The 
Mean per-family income is $100,000, whereas the mode is $71,000.
-if a new family were to move into the community with an annual income of $295,000, this would most affect
A) the mean
B) the median
C) the mode
D) all of these

Quizplus · Accepted Answer

The mean is the average, which is affected by extreme values. Adding a family with an income of $295,000 would significantly increase the total income and therefore increase the mean per-family income, without affecting the median or mode.

In a Certain Community, the Median Per-Family Annual Income Is