Four commonly used investment decision methods that generate statistics to compare projects are present worth, annual worth, future worth, and rate of return.
四个通常的产生统计以比较方案的用于投资决策方法是：现值法、年值法、期望值法和回报率法。
Oil and gas producers use certain decision-making methods to calculate statistics of comparison.
油气生产者用一定的决策方法来计算统计对比数据。
The theory and methods of mathematical statistics were used to optimal estimation, testing and analysis on data of radar accuracy testing. The problem of decision making and testing were solved.
运用数理统计的理论、观点和方法对制导雷达精度检验中的数据进行了最优估计、检验和分析，解决了雷达精度的检验、判定和决策问题。
The theory and methods of mathematical statistics were used to optimal estimation, testing and analysis on data of radar accuracy testing. The problem of decision making and testing were solved.
运用数理统计的理论、观点和方法对制导雷达精度检验中的数据进行了最优估计、检验和分析，解决了雷达精度的检验、判定和决策问题。
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