MCQ (1 Marks)- Week 7 All of the following steps are part of Naïve Bayes method excepta) b) c) d)
Find all the other records where the predictor values are same Determine what classes they all belong to and which is more prevalent Assign that class to the old record None of the above
Ans: c Which of the following is a basis of Naïve Bayes method? a) b) c) d)
Pie Chart Regression Conditional Probability Pivot Table
Ans: c Which of the following is an advantage of Naïve Bayes classifier? a) b) c) d)
Simplicity Computational efficiency Good classification performance All of the above
Ans: d Which of the following is necessary to establish in Naïve Bayes method? a) b) c) d)
Beta value Cutoff Probability Alpha value Gamma value
Ans: b If computed probability value is greater than cut off probability value then which of the following step would be required? a) b) c) d)
Delete the observation Assign the new observation to the class of interest Do not assign the new record to the class of interest New cut off probability is required
Ans: b Which of the following is not true for Bayes model for classification? a) Predictors should also be categorical
b) Numerical variables need not to be converted into categorical c) Naïve Bayes classifiers are highly scalable d) All the records are used instead of relying on just the matching records Ans: b Statement I: Naïve Bayesian Classifier can be used only with categorical variables. Statement II: In Naïve Bayes, predictor’s values (x1, x2,…..,xp) occur independent of each other for a given class Which of the following is true? a) b) c) d)
Statement I is true and Statement II is false Statement II is true and Statement I is false Both the statements are true None of the statement are true
Ans:c Naïve Bayes formula works well fora) b) c) d)
Prediction Classification Association Clustering
Ans: b Which of the following is true about Naïve Bayes? a) b) c) d)
Use of conditional probability Class of interest Use of categorical variables All of the above
Ans: d Predicting fraudulent financial reports is an example of? a) b) c) d) Ans: b
Z-test Naïve Bayes Linear Programming None of the above
a) Use of conditional probability. b) Class of interest. c) Use of categorical variables. d) All of the above. Ans: d. Predicting fraudulent financial reports is an example of? a) Z-test. b) Naïve Bayes. c) Linear Programming. d) None of the above. Ans: b. Page 2 of 2. MCQ 7 week solution.pdf. MCQ 7 week solution.pdf. Open.
Page 1 of 2. MCQ (1 Marks)- Week 7. All of the following steps are part of Naïve Bayes method except- a) Find all the other records where the predictor values are same. b) Determine what classes they all belong to and which is more prevalent. c) Ass
a) Root mean squared error (RMSE). b) Sum of squared error (SSE). c) Both A and B. d) None of the above. Answer. A. Which is the true assumptions that are made when building decision trees. a) The data can be described by features, such as the featur
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Page 1 of 11. 034488339 [email protected] www.stgerards.school.nz. Week 7 Term 4: Wednesday November 29th 2017. PRINCIPAL'S MESSAGE. With only 2 and a half weeks left at school, students are all beginning to feel tired,. sickness is happenin
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