Spread we can determine the iqr by completing we q3

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Unformatted text preview: n determine the IQR by completing We Q3 – Q1. 1, 5, 9, 8, 6, 1, 2, 3, 7, 4, 20 Find the IQR (the same data as the last slide) Outliers An An Outlier in any graph of data is an Outlier individual observation that falls outside the overall pattern of the graph. overall To To determine whether or not a dataset contains outliers, complete the following steps: steps: Outliers Outliers Step 1: Step 2: Step 3: Step Step 4: Step Step Determine the IQR of the data Multiply the IQR by 1.5 Subtract 1.5•IQR from Q1 Add 1.5•IQR to Q3 5: Use the two values from steps 3 & 4 to create a range. Step 6: Any data point outside your Step determined range is an outlier. determined Box Plots Box A box plot (aka Box-and-Whiskers Plot) box allows us to graphically represent the fiveallows number summary of the data. The The box plot gives us information on Range, extrema, quartiles, median, IQR and outliers. extrema, Therefore, the box plot shows us how the data Therefore, is spread over the entire range. is Box Plots Box Use the data to create a box plot: 1, 5, 9, 8, 6, 1, 2, 3, 7, 4, 20 Modified Box Plots Modified A modified box plot plots outliers as modified isolated points. isolated Use the data to create a modified box plot: 1, 5, 9, 8, 6, 1, 2, 3, 7, 4, 20 Box Plots on the Calculator Box Comparing Box Plots Comparing Comparing Box Plots Comparing Homework Homework Read and take notes textbook pp. 73 – 83 Complete Chapter Quiz worksheet “Activity 6-8” 3 Project due September 12th Tuesday!...
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