Vocabulary Quiz I Measures of Central Tendency

-most frequently occurring number in a data set

• mean
• median
• mode
• range

-center number of a data set

• mean
• median
• mode
• range

-difference between the largest and smallest value of a data set

• mean
• median
• mode
• range

-describes middle 50% of data

• lower quartile range
• mean absolute deviation
• interquartile range
• deviation from the mean

-bar graph of data intervals

• stem and leaf plot
• dot plot
• histogram
• box plot

-graph that summarizes data into 5 measures

• stem and leaf plot
• dot plot
• histogram
• box plot

measure of variability when data is skewed

• interquartile range
• mean absolute deviation
• deviation from the mean
• upper quartile

The number of times the value appears in a data set.

• Frequency

• Joint Relative Frequency

• Marginal Relative Frequency

• Conditional Relative Frequency

-graph used to convey information about center and variability

• stem and leaf plot
• dot plot
• histogram
• box plot

What is an outlier?

• A straight line

• The steepness of a line

• A point that lies outside of a pattern