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# 统计代写|统计入门代写Introduction to Statistics代考|CIVL2530 What Are Measures of Central Tendency, and Why Are They Used?

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## 统计代写|统计入门代写Introduction to Statistics代考|What Are Measures of Central Tendency, and Why Are They Used?

1V easures of central tendency such as the mode, the median, and the the characteristics of a tirst type of descriptive statistics that one uses to describe
Meystires will be discussed in the next section in 100 Questions.
centrat or restes of central tendency, also called averages, reflect the one most select only onesentative point in a set of data. In other words, if you had to select only one score from a set of scores to represent that set, you would you might use the mean as the descriptive statistic. for the month of August, central tendency one uses depends on the type of data one is dealing with
The median is the score that is the midpoint among a group of scores when the scores are put in order from least to greatest. It is defined as the point at which $50 \%$ of the scores are above it and $50 \%$ of the scores are below it. It is most often used to compute the average of a set of scores when the set includes extreme (very high or very low) scores.

The mode, which is the most imprecise measure of central tendency, is the number of times that the most frequently occurring score appears in a set of data. It is most often used when the data are nominal or categorical in nature.

The mean is the arithmetic average of a set of scores. While there are different types of means, the arithmetic mean is the point at which the set of data is “balanced” or the point at which the various scores find a middle ground.
While each of these measures of central tendency is used for different types of data, one of the most important applications is to describe a data set along with measures of variability and as the basis for the computation of standard scores. In addition, an interesting applied question when dealing with any type of data is, What is the relationship between an “average” score and scores that are “not average” or atypical?

## 统计代写|统计入门代写Introduction to Statistics代考|What Is an Example of How a Measure of Central Tendency Can Be Used?

verages are often used as a reference point for one characteristic of a set of scores, such as the average heights of males and females. Averages are the “middle” ground: The average is the best representation of all the scores in a set of scores. In both inferential as well as descriptive statistics, averages are widely used as measures that can be compared to one another to determine whether there is any difference between two or more groups.

One such study examined the perceptions of love across the life span using a triangular theory of love, which distinguishes among passion, intimacy, and commitment. The study investigated the results of tests in which the short Triangular Love Scale was administered to adolescents and adults, and it tracked age and gender differences in a sample of almost 3,000 12- to 88-year-olds.

Where do averages fit in? In answering their questions, the researcher used an inferential test-called the $t$-test-that compares the mean score of one group of participants to the mean score of another group of participants. $t$-tests, which use the arithmetic mean as the average (along with a measure of variability), enable the researchers to reach a conclusion as to whether the difference between groups is due to chance or due to the variable of interest. In this case, the variable of interest was the score on the Triangular Love Scale.

The results? Adolescents (ages 12-17 years) reported lower levels of all love components compared to young adults (ages 18-30 years), and older adults (50+ years) reported lower levels of passion and intimacy but similar levels of commitment compared to young and middle-aged adults (ages 30-50 years). Gender differences in the perceptions of all three love components were present but less sizeable than the researchers expected.

The use of the mean as an indicator of differences and the $t$-test (which comes in many forms) is very common in basic statistics.
Here’s the complete reference …
Sumter, S. R., Valkenburg, P. M., \& Peter, J. (2013). Perceptions of love across the lifespan: Differences in passion, intimacy, and commitment. International Journal of Behavioral Development, 37(5), 417-427.

## 统计代写|统计入门代写Introduction to Statistics代考|What Are Measures of Central Tendency, and Why Are They Used?

1V 集中趋势的度量，例如众数、中位数，以及用于描述
Meystires 的第一类描述性统计的特征，将在下一节的 100 个问题中讨论。

## 统计代写|统计入门代写Introduction to Statistics代考|What Is an Example of How a Measure of Central Tendency Can Be Used?

Sumter, SR, Valkenburg, PM, \& Peter, J. (2013)。一生中对爱的看法：激情、亲密和承诺的差异。国际行为发展杂志，37（5），417-427。

## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。