Most introductory statistics books focus only on linear regression, and entirely ignore nonlinear regression.
大多数引导统计书只集中于线性回归，并且完全忽略非线性的回归。
They all take the same introductory courses: statistics, accounting, Econ 101.
他们上的入门课都一样：统计学，会计，经济101。
An introductory course in epidemiology is suggested. Knowledge of statistics and familiarity with research methods is also recommended.
建议先修完基础流行病学，具备统计学知识，并熟悉研究法。
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