1. The information entropy of the following conditions is the largest ( ) AUnder a certain condition, 11 people all go to the movies BAt the weekend, 20 people go to Xixi, 10 people do not go CUnder a certain condition, 5 people go to Simeon Mountain, 5 people do not go DIn a certain condition, 9 people go to sports and 8 people don't

11. In multiple regression, since there may be some correlation between the independent variables, we usually use the ( ) method for variable selection. A. stepwise method B. forward method C. entry method D. backward method

5. Occam's razor principle means that () A. the model fit improves as the independent variables increase BThe simpler the model, the better and easier to generalize CThe simpler the model, the better it is at the same level of requirements DThe fewer the variables, the better and easier to generalize

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