Understanding the definition of random experiment, neglect the essential data, lack of basic knowledge about probability, read the problem doesn"t understand symbols used incorrectly. Don"t use the information given. Cannot be interpreted language. Lack of knowledge in decision making and problem solving. The lack of knowledge in the method selection in problem solving, lack the basic about finding the results screen position all happened. A lack of caution in solving problems. Neglect the essential information in the problem solving. The haste in solving problems. And lack of validation during problem solving.
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