61. True or False: Ensembles will yield bad results when there is significant diversity among the models. Note: All individual models have meaningful and good predictions.
62. Which of the following is / are true about weak learners used in ensemble model?
1. They have low variance and they don't usually overfit
2. They have high bias, so they can not solve hard learning problems
3. They have high variance and they don't usually overfit
1. They have low variance and they don't usually overfit
2. They have high bias, so they can not solve hard learning problems
3. They have high variance and they don't usually overfit
63. According to . . . . . . . . , it's a key success factor for the survival and evolution of all species.
64. In a Rule based classifier, If there is a rule for each combination of attribute values, what do you called that rule set R
65. Which of the following classifications would best suit the student performance classification systems?
66. Which of the following sentence is FALSE regarding regression?
67. Given a rule of the form IF X THEN Y, rule confidence is defined as the conditional probability that Select one:
68. Database query is used to uncover this type of knowledge.
69. A measurable property or parameter of the data-set is
70. Let's say, you are working with categorical feature(s) and you have not looked at the distribution of the categorical variable in the test data. You want to apply one hot encoding (OHE) on the categorical feature(s). What challenges you may face if you have applied OHE on a categorical variable of train dataset?
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