Sample - 1. A small part of a group chosen to represent the whole group., Experimentation - 2. The method used by the physicist in collecting data., Investigator - 3. The person who gathers data using the observation method., Survey - 4. Data collected using face-to-face interviews or written questionnaires., Data - 5. The information collected.,

Statistics

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？