Remove Clustering Remove Cross Validation Remove Decision Trees Remove Hypothesis Testing
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Top 10 Data Science Interviews Questions and Expert Answers

Pickl AI

Statistical Concepts A strong understanding of statistical concepts, including probability, hypothesis testing, regression analysis, and experimental design, is paramount in Data Science roles. Clustering algorithms such as K-means and hierarchical clustering are examples of unsupervised learning techniques.

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Top 50+ Data Analyst Interview Questions & Answers

Pickl AI

Techniques such as cross-validation, regularisation , and feature selection can prevent overfitting. Then, I would use clustering techniques such as k-means or hierarchical clustering to group customers based on similarities in their purchasing behaviour. What are the advantages and disadvantages of decision trees ?

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[Updated] 100+ Top Data Science Interview Questions

Mlearning.ai

There are majorly two categories of sampling techniques based on the usage of statistics, they are: Probability Sampling techniques: Clustered sampling, Simple random sampling, and Stratified sampling. Decision trees are more prone to overfitting. Some algorithms that have low bias are Decision Trees, SVM, etc.