Question 3 1 1 pts the is a measure of the strength

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  Question 3 1 / 1 pts The ____ is a measure of the strength of evidence in favor of a particular classification.    posterior odds ratio      anterior odds ratio      F statistic      none of the above   Correct! The posterior odds ratio is a measure of the strength of evidence in favor of a  particular classification.   Question 4 1 / 1 pts A _____ is a matrix of the correct and incorrect classifications made by a classification  algorithm.    lift chart      gain chart  
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   contingency table      none of the above   Correct! A contingency table is a matrix of the correct and incorrect classifications made by a classification algorithm.   Question 5 1 / 1 pts The ________ represents an overall measure of the proportion of correct classifications  being made by the model.    overall error rate      accuracy      coefficient of determination      none of the above   Correct! The accuracy represents an overall measure of the proportion of correct  classifications being made by the model.   Question 6 1 / 1 pts _____ refers to methods for describing the relationship between a categorical response  variable and a set of predictor variables.
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   Linear regression      Spontaneous regression      Sigmoidal      None of the above   Correct! None of these are correct. Logistic regression refers to methods for describing  the relationship between a categorical response variable and a set of predictor  variables.   Question 7 1 / 1 pts Bayes networks were originally designed to graphically specify the _______ structure  among variables.    conditional dependencies      joint probabilities      conditional independencies      none of the above  
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Correct! Bayes networks were originally designed to graphically specify the conditional  independencies structure among variables.   Question 8 1 / 1 pts In a _____ approach to probability, the population parameters are fixed constants where values are known.    frequentist      Bayesian      logistic regression      none of the above   Correct! In a frequentist approach to probability, the population parameters are fixed  constants where values are known.   Question 9 1 / 1 pts _____ is where more than one predictor variable is used to classify a binary response  variable.    The confidence interval      Multiple logistic regression  
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   Linear regression      None of the above   Correct! Multiple logistic regression is where more than one predictor variable is used to classify a binary response variable.   Question 10 1 / 1 pts _____ measures the ability of the model to classify a record positively.    Sensitivity      Specificity      Accuracy      None of the above   Correct! Sensitivity measures the ability of the model to classify a record positively.
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  • Fall '16
  • Mastery Exercise 4

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