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19) You run cross validation using the Caret package and get the following output. model log$results parameter Accuracy Kappa AccuracySD KappaSD none 0.8924764 0.7848746 0.047502320.09498272 Which of the following is true? A) 89.2% of the variation in your data is accounted for by the model B) The p-value of the method is 0.0047, so cross validation is significant at the a=0.05 level. C) Accounting for random error, cross-validation achieved a classification success of 0.7849 (78.49 %). D) Cross-validation achieved a classification success of 0.7849 (78.49 %). Answer: C 21) You have a dataset with eight values 3.2, 4.5, 6.0, 7.1, 7.2, 7.8, 8.5, 9.9. You sample sets of five values from this dataset. Which of these could possibly be sampled with replacement? A) 4.5, 6.0, 7.1, 7.1, 8.5 B) 3.2, 4.5, 6.0, 7.8, 8.5 C) 3.2, 7.1, 7.2, 8.5, 9.9 D) 6.0, 7.1, 7.2, 8.5, 9.9 Answer: A

19) You run cross validation using the Caret package and get the following output. model log$results parameter Accuracy Kappa AccuracySD KappaSD none 0.8924764 0.7848746 0.047502320.09498272 Which of the following is true? A) 89.2% of the variation in your data is accounted for by the model B) The p-value of the method is 0.0047, so cross validation is significant at the a=0.05 level. C) Accounting for random error, cross-validation achieved a classification success of 0.7849 (78.49 %). D) Cross-validation achieved a classification success of 0.7849 (78.49 %). Answer: C 21) You have a dataset with eight values 3.2, 4.5, 6.0, 7.1, 7.2, 7.8, 8.5, 9.9. You sample sets of five values from this dataset. Which of these could possibly be sampled with replacement? A) 4.5, 6.0, 7.1, 7.1, 8.5 B) 3.2, 4.5, 6.0, 7.8, 8.5 C) 3.2, 7.1, 7.2, 8.5, 9.9 D) 6.0, 7.1, 7.2, 8.5, 9.9 Answer: A

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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how to get these answers ? 19) You run cross validation using the Caret package and get the following output. model log$results parameter Accuracy Kappa AccuracySD KappaSD none 0.8924764 0.7848746 0.047502320.09498272 Which of the following is true? A) 89.2% of the variation in your data is accounted for by the model B) The p-value of the method is 0.0047, so cross validation is significant at the a=0.05 level. C) Accounting for random error, cross-validation achieved a classification success of 0.7849 (78.49%). D) Cross-validation achieved a classification success of 0.7849 (78.49%). 1 Answer: C 21) You have a dataset with eight values 3.2, 4.5, 6.0, 7.1, 7.2, 7.8, 8.5, 9.9. You sample sets of five values from this dataset. Which of these could possibly be sampled with replacement? A) 4.5, 6.0, 7.1, 7.1, 8.5 B) 3.2, 4.5, 6.0, 7.8, 8.5 C) 3.2, 7.1, 7.2, 8.5, 9.9 D) 6.0, 7.1, 7.2, 8.5, 9.9 Answer: A
Transcribed Image Text:how to get these answers ? 19) You run cross validation using the Caret package and get the following output. model log$results parameter Accuracy Kappa AccuracySD KappaSD none 0.8924764 0.7848746 0.047502320.09498272 Which of the following is true? A) 89.2% of the variation in your data is accounted for by the model B) The p-value of the method is 0.0047, so cross validation is significant at the a=0.05 level. C) Accounting for random error, cross-validation achieved a classification success of 0.7849 (78.49%). D) Cross-validation achieved a classification success of 0.7849 (78.49%). 1 Answer: C 21) You have a dataset with eight values 3.2, 4.5, 6.0, 7.1, 7.2, 7.8, 8.5, 9.9. You sample sets of five values from this dataset. Which of these could possibly be sampled with replacement? A) 4.5, 6.0, 7.1, 7.1, 8.5 B) 3.2, 4.5, 6.0, 7.8, 8.5 C) 3.2, 7.1, 7.2, 8.5, 9.9 D) 6.0, 7.1, 7.2, 8.5, 9.9 Answer: A
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