Unit RQ #3

When you read a bar graph, it is most important for you to

• understand the concept of the overconfidence effect.
• mentally transform the data into a scatterplot.
• identify the value of the standard deviation.
• note the range and size of the scale values.

The most commonly reported measure of central tendency is the

• mode.
• mean.
• normal distribution.
• standard deviation.

When Mr. Adams calculated his students' algebra test scores, he noticed that two students had extremely low scores. Which measure of central tendency is affected most by the scores of these two students?

• mean
• standard deviation
• mode
• median