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Imagine, you are solving a classification problems with highly imbalanced class. The majority class is observed 99% of times in the training data. Your model has 99% accuracy after taking the predictions on test data. Which of the following is true in such a case?
1. Accuracy metric is not a good idea for imbalanced class problems.
2.Accuracy metric is a good idea for imbalanced class problems.
3.Precision and recall metrics are good for imbalanced class problems.
4.Precision and recall metrics aren't good for imbalanced class problems.
The Aspirational Districts Programme (ADP) was launched in January 2018 to:
1. Transform the lives of people in the under-developed areas of the county
2. Anchored in NITI Aayog, the programme is aimed at transforming 115 most backward district
3. Focused interventions in the field of health and nutrition,
4. Focused interventions in education, agriculture and water management,
5. Focused interventions in financial inclusion and skill development
Select the correct answer:
What kind of city will Marinnation be?
(i) Arun and Aparna are here. (ii) Arun and Aparna is here. (iii) Arun's families is here. (iv) Arun's family is here. Which of the above sentences are grammatically CORRECT?
In the following question, one part of the sentence has an error. Read the sentence to find the error and mark the corresponding option. If the sentence has no error choose option 4 ‘No error’ as your answer. If you were more focused on listening, and less focused (A) on answering down, this intervention would have been fruitful for you, (B) which otherwise has been a complete waste of time. (C) No error (D)
Sohana's mathematics test had 75 problems i.e. 10 arithmetic, 30 algebra and 35 geometry problems each carrying I mark She answered 70% of the arithmetic, 40% of the algebra and 60% of the geometry problems correctly. She did not pass the test as she got less than 60% marks. How many more questions she would have needed to answer correctly to earn a 60% passing grade?
Given below are four jumbled sentences.Select the option that gives their correct order.  A.that is, many media outlets have been accused either of being too conservative or of being too liberal.  B.Who owns a media outlet often determines things such as the types of social problems that outlet presents, how long that outlet airs those problems, and how dramatically that outlet presents those problems.  C.The American media is often biased towards one or the other end of the political spectrum;   D.Mass media may use propaganda as a means to promote or publicize a particular political cause or point of view, or to maintain the viewer's attention. 
For children who are in formal operational stage teachers should - (i) Use diagrams to depict hierarchical relationships (ii) Present problems that require hypothetical thinking (iii) Avoid presenting abstract problems (iv) Give opportunities to solve problems and reason scientifically
Which of the following is/are correct? AC network analyzer is used to solve Status i. Load flow problems ii. Short circuit problems iii. Stability problems
If there are 150 questions in a 3 hr examination. Among these questions 50 are type A problems, which requires twice as much as time be spent on the rest of the type B problems. How many minutes should be spent on type A problems ?