(A) choose the same training instance several times
(B) choose the same test set instance several times
(C) build models with alternative subsets of the training data several times
(D) test a model with alternative subsets of the test data several times
Q112: Choosing data in such a way that each class is represented equally in both the training and test sets
(A) cross validation
(B) stratification
(C) verification
(D) bootstrapping
Q113: Each data instance is assigned a conditional probability value using this method.
(A) linear regression
(B) logistic regression
(C) simple regression
(D) multiple linear regression
Q114: A model of language consists of the categories which does not include?
(A) Language units
(B) Role structure of units
(C) System constraints
(D) Structural units
Q115: Which of the following approaches performs actions that are comparable to dropout in a neural network?
(A) Bagging
(B) Boosting
(C) Stacking
(D) None of these
Q116: What approaches may be used to reduce overfitting in decision trees?
(A) Pruning
(B) Make sure each leaf node is one pure class
(C) ) Enforce a minimum number of samples in leaf nodes
(D) Enforce a maximum depth for the tree
Q117: Which of the following is a constant property of a kernel matrix?
(A) Invertible
(B) All the entries are positive
(C) At least one negative eigenvalue
(D) Symmetric
Q118: Correlation between two variables (Var1 and Var2) is 0.65. Now, after adding numeric 2 to all the values of Var1, the correlation co-efficient will_______?
(A) Increase
(B) Decrease
(C) None of these
Q119: A and B are the two coins we have. The probability of receiving a head on each toss of coin A is 1/2, while the probability of getting heads on each toss of coin B is 1/3. Tosses of the same coin are independent of one another. We choose a coin at random and throw it till it comes up heads. The chance of picking coin A is 1/4 and that of selecting coin B is 3/4. What is the average number of tosses required to get the first heads?
(A) 2.75
(B) 3.35
(C) 4.13
(D) 5.33
Q120: Assume you’re in the business of selling sandwiches. 70% of those polled choose eggs, while the remaining 30% prefer chicken. What is the probability of selling two egg sandwiches to the following three customers?
