Find the Upper and Lower outlier boundaries

To find the upper and lower outlier boundaries, you can use the **Interquartile Range (IQR)** method, which is a common way to detect outliers in a dataset.

Here are the steps to compute the upper and lower outlier boundaries:

1. **Find the First Quartile (Q1)**: The 25th percentile of the data.
2. **Find the Third Quartile (Q3)**: The 75th percentile of the data.
3. **Calculate the Interquartile Range (IQR)**:
   \[
   \text{IQR} = Q3 - Q1
   \]
4. **Determine the Lower Outlier Boundary**:
   \[
   \text{

Learn how to find the upper and lower outlier boundaries using the Interquartile Range (IQR) method. This step-by-step guide walks you through calculating Q1, Q3, and IQR to detect outliers in your dataset. Ideal for students in Grades 9-12.

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