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Sleeplessness causes problems with our_ clock.
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.
Attraction causes infatuation. Infatuation causes anger. Anger causes frustration. Therefore attraction causes frustration. Point out the correct statement from the following:
Which of the following among item A and item B are correct?
The right of private defence extends, subject to Section 99, to the causing of death of the assailant or aggressor in the following circumstances:
Item A: For defence of body:
1. Against an act which reasonably causes the apprehension of an assault to outrage the modesty
2. Against an act which reasonably causes the apprehension that the assailant will kill his children living in another city
3. Against an act which reasonably causes the apprehension that grievous hurt would otherwise be the consequence
Item B: For defence of property:
1. While the trespasser is engaged in house breaking during day time.
2. Against a thief who reasonably causes the defender to believe that he would lose his property
3. Against a person who commits mischief under such circumstances as may reasonably cause apprehension that grievous Hurt would be a consequence
Select the correct answer:
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 ?
An hour-long test has 60 problems. If a student completes 30 problems in 25 minutes, then the required seconds he has taken on average for computingeach of the remaining problems is