Friday, November 25, 2022
Saturday, March 23, 2024
问题:在对X与Y的相关分析中()。A、X是随机变量B、Y是随机变量C、X,Y都是随机变量D、X,Y都是非随机变量
Wednesday, October 25, 2023
Saturday, March 2, 2024
问题:定量预测方法大致可以分为()。A、回归预测法B、相互影响分析法C、时间序列预测法D、情景预测法E、领先指标法
Wednesday, October 25, 2023
问题:时间序列的分解法中受季节变动影响所形成的一种长度和幅度固定的周期波动称为()。A、长期趋势B、季节趋势C、周期变动D、随机变动
Wednesday, April 3, 2024
Tuesday, November 28, 2023
问题:就统计预测方法而言,其最基本的作用在于把历史资料中同时并存的()和误差分开。A、经济理论B、基本轨迹C、数学模型D、误差
Saturday, May 11, 2024
Sunday, October 23, 2022
Tuesday, November 14, 2023
Tuesday, February 13, 2024
Saturday, March 2, 2024
Thursday, February 29, 2024
Saturday, March 2, 2024
问题:多目标决策的两个明显特点是目标之间的()。A、不可公度性B、矛盾性C、依赖性D、互补性
Wednesday, April 3, 2024
Wednesday, April 3, 2024
Saturday, May 11, 2024
Tuesday, November 28, 2023
问题:如果数据的基本模型是非线性的,则可采用()指数平滑法。A、一次B、二次C、布朗二次D、季节性
Wednesday, April 3, 2024
Tuesday, November 28, 2023