概率是近几年高考中常考的一个知识点,这一知识板块中的概念和公式较多,且很容易混淆,只有很好地理解概念的实质和公式的使用条件,才能系统地掌握这部分知识.现就概率中常见的易混错误进行对比、解析,期望能增强同学们防错的“免疫力”.一、“频率”与“概率”不清致错例1某人将一枚硬币连续抛掷10次,正面向上情形出现了6次,若用A表示正面向上这一事件,则事件A的() Probability is a common knowledge of college entrance examination in recent years, a point of knowledge, the concept of knowledge and more plates and formulas, and it is easy to confuse, only a good understanding of the essence of the concept and the conditions of use of the formula, in order to systematically grasp this part Knowledge. Now common in the probability of miscibility errors were compared, analysis, expectations can enhance the students to prevent the “immunity.” First, “frequency ” and “probability ” unclear to the wrong example 1 Someone throws a coin ten times in a row and six times in a positive face-up situation. If A is a face-up event,