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)...
百度试题 结果1 题目In statistics, the ___ is a measure of the extent to which two variables are linearly related.相关知识点: 试题来源: 解析 答案:correlation coefficient 反馈 收藏
Statistics _ a subject that I found difficult to learn in the past.中主语 Statistics,当它表示统计学时,谓语动词用单数形式,宾语 a subject,定语从句 that I found difficult to learn in the past 是我过去的想法;句子主干 Statistics _ a subject 陈述一般事实,使用一般现在时,结合选项形式:A.were 过去...
3.The statistics ___a change in people's spending habits.(reflect, reflection)[答疑编号506430010308:针对该题提问]显示答案隐藏答案 相关知识点: 试题来源: 解析 reflect【答案解析】译文:此统计数据反映了人们消费习惯方面的变化。这里句子缺少的是谓语动词,而reflection是名词。reflect,动词,显示、表明。答案为...
【题目】standard deviation In statistics, a measure (S)of the spread of data. The deviation ( difference) of each dat a item from the mean is found, and their values squared. The mean value of these squares is then calculated. The standard deviation is the square root of this mean.If ...
百度试题 结果1 题目The statistics ___ a change in people's spending habits. A) give B) reflect C) promise D) contact 相关知识点: 试题来源: 解析 B 反馈 收藏
In a survey, the mean age of the participants was 25 years. What does "mean" refer to in statistics? A. The most common value B. The middle value C. The average value D. The difference between the highest and lowest values 相关知识点: ...
百度试题 题目The statistics ___ a change in people’s spending habits.相关知识点: 试题来源: 解析 reflect 反馈 收藏
百度试题 结果1 题目Thestatistics___ (reflection) achangeinpeople’sspendinghabits.相关知识点: 试题来源: 解析 reflect 反馈 收藏
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