Chapter 3 Vocabulary Quiz--Stat and Business

A measure of spread within a distribution (the square of the standard deviation).

• Interquartile Range (IQR)
• Variance
• Five-number-summary
• Standardized Value

The difference between Q3-Q1.

• Bin
• Center
• Outliers
• (IQR)

A computed measure of how much scores vary around the mean score.

• Standard Deviation
• Symmetric
• Spread
• Skewed

In a distribution when one tail stretches farther than the other.

• z-score
• Multimodal
• Skewed
• Quartile

One mode.

• Bimodal
• Unimodal
• Mode
• Histogram

A type of bar graph used to display numerical (quantitative) data that have been organized into equal intervals with adjacent bars.

• Distribution
• Uniform
• Histogram
• Symmetric

The middle score in a distribution; half the scores are above it and half are below it.

• mean
• mode
• median
• range

A picture of numerical data collected over time

• pie chart
• bar graph
• Stem & Leaf Display
• Time series plot

Five-number-summary

• mean. standard deviation, range, mode, median
• Minimum, Q1, Median, Q3, Maximum
• Q1, Q2, Mode, Range, IQR
• IQR, Standard Deviation, Variance, Median, Min

Shows quantitative data values in a way that sketches the distribution.

• Histogram
• Stem & Leaf Display
• line graph
• dot plot