单词	random sample
释义	Random Sample A selection that is chosen randomly (purely by chance, with no predictability). Every member of the population being studied should have an equal chance of being selected. Example: you want to survey 100 people at a football match about their main job. Asking just people in one area might give poor results as there may be a group of workmates there! So instead you can make a list using randomly chosen seat numbers from the whole stadium, then go and find each seat and interview the person there.
随便看	extrapolation extrema face factor factor theorem factor tree factorial factoring factorising fahrenheit fall femto- fibonacci sequence figurate number finance charge financial goals financial literacy financial plan finite finite number first flat flip fluid ounce focus

数学辞典收录了1200条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。