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What is the main purpose of a dendrogram in data science?

easy📝 Conceptual Q11 of 15
SciPy - Clustering and Distance
What is the main purpose of a dendrogram in data science?
ATo visualize hierarchical clustering as a tree
BTo perform linear regression analysis
CTo calculate the mean of a dataset
DTo create a scatter plot of two variables
Step-by-Step Solution
Solution:
  1. Step 1: Understand dendrogram function

    A dendrogram is used to show hierarchical clustering results visually as a tree structure.
  2. Step 2: Compare with other options

    The other options describe different data analysis or visualization methods unrelated to dendrograms.
  3. Final Answer:

    To visualize hierarchical clustering as a tree -> Option A
  4. Quick Check:

    Dendrogram = hierarchical clustering tree [OK]
Quick Trick: Dendrograms always show clusters as tree diagrams [OK]
Common Mistakes:
  • Confusing dendrogram with scatter plot
  • Thinking dendrogram calculates statistics
  • Mixing dendrogram with regression plots

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