英语词汇“population variance”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	population variance
释义	population variance population variance [‚päp·yə′lā·shən ′ver·ē·əns] (statistics) The arithmetic average of the numbers (v₁-v̄)²,…, (v_N-v̄)², where v_iare numbers obtained from a population with N members, one for each member, and v̄ is the population mean.
随便看	stringboards string break string cheese string citation string comparison string (computer science) string concatenation string constant string control byte stringcourse string development string duality stringed stringed instrument stringed instrument, bowed stringed instrument, hammered stringed instrument, plucked stringed instruments stringed instrument theory string editor string electrometer stringencies stringency stringendo stringent

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。