(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?