Here is the list of terms/concepts/ideas that may appear on tomorrow's quiz (only 13-15 are on the actual quiz, but you have to know them all!):
- Response Variable (check the definition from your chapter 2 quiz!)
- Relative (check the definition from your chapter 2 quiz!)
- Boxplot (a graphical display that shows the 5 number summary with outliers)
- Histogram (a graphical display that shows us the different values of a variable, and the frequencies for those values)
- Stemplot (a graphical display that shows the distribution of a data set and preserves the original values in a data set)
- Range (a measure of spread; max - min)
- IQR (Interquartile Range) (a measure of spread; Q3 - Q1)
- Median (a measure of center; the middle value in a data set)
- Mean (a measure of center; the average of the values in a data set)
- Skewed Left (a distribution where most data values are on the right/higher values, with a few low values)
- Skewed Right (a distribution where most data values are on the left/lower values, with a few high values)
- Center (an attempt to summarize a data set with one value; a "typical value" for a data set)
- Spread (measures how much our data varies, or how tightly values are clustered around the center; also known as variability)
- Outlier (a data value that falls outside the calculated fences; an extreme data value that falls away from the rest of the values in a data set)
- Describe a distribution (we always describe SOCS--shape, outliers/gaps/clusters, center, and spread)
- There are two questions that give you a graph and ask you to describe the shape in two ways (look at yesterday's stamp for review--be sure to know all the different ways to describe shape--unimodal, bimodal, multimodal, uniform, symmetric, skewed left, skewed right)
- Measures of spread (range, standard deviation, IQR)
- Measures of center (mean, median)
- Quantitative Data Displays (dotplot, boxplot, ogive, histogram, stemplot, timeplot)
- Categorical Data Displays (frequency table, pie chart, bar chart, relative frequency table, relative bar chart)
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