Machine learning quiz questions TRUE or FALSE with answers, important machine learning interview questions for data science, Top 3 machine learning question set
Machine Learning TRUE / FALSE Questions - SET 07
1. If two random variables are independent, then they have to be uncorrelated.
(a)
TRUE (b)
FALSE
View Answer
Answer: TRUE
If two random variables A and B are independent, then they are uncorrelated.Uncorrelated means that their correlation coefficient is 0, or, equivalently, that the covariance between them is 0.
Independent
random variables are uncorrelated, but uncorrelated random variables are not
always independent.
|
2. Given a linearly-separable dataset for a
2-class classification problem, a Linear SVM is better to use than a perceptron
because the SVM will often be able to achieve better classification accuracy on
the testing set.
(a)
TRUE (b)
FALSE
View Answer
Answer: TRUE
True because by
maximizing the margin the decision boundary learned by the SVM will often be
farther away from more of the training examples, leading to better
performance on the testing examples that are close to the decision boundary.
|
3. K-means automatically adjusts the number of clusters.
(a)
TRUE (b)
FALSE
View Answer
Answer: FALSE
K-means neither decide nor adjust the number of clusters. The algorithm has to be initialized with a k value. |
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