Use statistical software to create, interpret, and analyze two histograms in a Word document.
Introduction
Descriptive statistics are just what they sound like, statistics that allow you to describe or summarize the data with regard to such things as their distribution and their spread. Descriptive statistics provide you with a picture of your data while inferential statistics (which we will discuss in subsequent assessments) allow you to draw conclusions about relationships between variables or differences between groups.
A solid understanding of descriptive statistics is foundational to grasping the concepts presented in inferential statistics. This assessment measures your understanding of key elements of descriptive statistics.
Your first statistical software assessment includes two sections in which you will do the following:
1. Create two histograms.
2. Calculate measures of central tendency and dispersion.
Here is an example of how to create, interpret, and analyze two histograms in a Word document using statistical software:
The data set that we will use for this example is the heights of 100 students. The heights are in centimeters.
The following histogram shows the distribution of the heights of the 100 students:
The histogram is symmetrical, with the highest point in the middle. The center of the distribution is around 175 centimeters. The spread of the distribution is from 150 to 200 centimeters. There are no outliers.
We can interpret the histogram as follows:
We can analyze the histogram by answering the following questions:
The histogram is a useful tool for visualizing the distribution of data. It can be used to answer questions about the shape, center, and spread of the distribution. The histogram can also be used to identify outliers.