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SRM Exam Chapter 1: Statistical Learning questions well answered to pass
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SRM Exam Chapter 1: Statistical Learning questions well answered to pass
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SRM Exam Chapter 1: StatisticalLearning
Response - correct answer ✔✔A variable of primary interest
Explanatory - correct answer ✔✔A variable used to study the response variable
aka predictors or features
Count - correct answer ✔✔A quantitative variable usually valid on non-negative integers
Continuous - correct answer ✔✔A real-valued quantitative variable
Nominal - correct answer ✔✔A categorical/qualitative variable having categories without a meaningful
or logical order
Ordinal - correct answer ✔✔A categorical/qualitative variable having categories with a meaningful or
logical order
y, Y - correct answer ✔✔Response variable
x, X - correct answer ✔✔Explanatory variable
Subscript i - correct answer ✔✔Distinguish between variables/represent observations
n - correct answer ✔✔Number of observations
Subscript j - correct answer ✔✔Index for variables except response
, p - correct answer ✔✔Number of variables except response
A^T - correct answer ✔✔Transpose of matrix A
A^(-1) - correct answer ✔✔Inverse of matrix A
ε - correct answer ✔✔Error term
y^hat, Y^hat, f^hat(x) - correct answer ✔✔Estimate/Estimator of 𝑓(𝑥)
Statistical Learning Problems - correct answer ✔✔Supervised
Unsupervised
Supervised Learning - correct answer ✔✔Analyzes the data with a response variable
Supervised Learning Examples - correct answer ✔✔Linear Models
Non-Linear Models
Time Series
Unsupervised Learning - correct answer ✔✔Analyzes the data without a response variable
Unsupervised Learning Examples - correct answer ✔✔Clustering
PCA
Supervised Statistical Learning Problems - correct answer ✔✔Regression
Classification
Regression - correct answer ✔✔Quantitative response variable
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