A. population B. data set C. variable D. parameter 相关知识点: 试题来源: 解析 A。本题考查样本的概念。样本是总体的一部分。选项 B“data set”是数据集,样本是从总体中抽取的一部分,不是数据集的一部分。选项 C“variable”是变量,样本不是变量的一部分。选项 D“parameter”是参数,样本不是参数的...
In statistics, a sample is a subset of ___. A. the population B. a group C. people D. items 相关知识点: 试题来源: 解析 A。在统计学中,样本是总体的一部分。选项 A“the population”(总体)正确。选项 B“a group”(一组)不确切。选项 C“people”(人)太局限。选项 D“items”(物品...
1, p. 343 Study Session 2-7-a, b Distinguish between descriptive statistics and inferential statistics, between a population and a sample, and among the types of measurement scales. Define a parameter, a sample statistic, and a frequency distribution. A is correct. A sample is a subset of...
A sample of data is a subset of the population of data that hopefully represents the accurate distribution of the data without introducing sampling bias (e.g., skewing the sample distribution based on how we sampled the population). Resampling Methods Bootstrapping and cross-validation are two ...
Preferably, by settling the particles through a substantial portion of the sample, it is bound to the selected population was mixed with the sample (12) the particles. Next, to separate the supernatant containing the enriched population of particles having by combining the selected population is ...
Sample Group Explorable.com123.1K reads In statistics, a sample group can be defined as a subset of a population. The population, or target population, is the total population about which information is required. Ideally, this is a population at risk. The "study population" is the population...
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Social phobia (SP) refers to excessive anxiety about social interactions. College students, with their exposure to academic, familial, and job-related pressures, are an ideal population for early screening and intervention of social phobia. Additionally,
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