Using a least-squared-error criterion to determine the line of best fit involves finding estimates of m and b that minimize the squared error of prediction.
使用最小方差法来确定最吻合的直线涉及寻找使预测方差最小的 m和 b的估计值。
The bottom line: the new economy offers plenty of creative ways to earn extra money; to find the best fit for you, consider your skills, lifestyle, and ambitions.
概述：新经济提供了大把的挣外快的创造性途径，权衡你自己的技能、生活方式和抱负，找到最适合你的工作。
The slope of the best fit line for distance doubled and time squared gives the acceleration due to gravity.
距离的两倍与时间的平方的最佳拟合曲线的斜率就是重力加速度。
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