Data collection by measurement can be undertaken is several ways, some of these are: The direct measurement of a physical characteristic using an instrument The observation of people …

Stages in Statistical Investigation There are five stages or steps in any statistical investigation. 1.Collection of data: the process of measuring, gathering, assembling the raw data up on which the statistical investigation is to be based. Data can be collected in a variety of ways; one of the most common methods is through the use of survey.

2022年11月18日 · This document discusses various methods for presenting data, including text, tables, and graphs. It provides classifications of data types and outlines principles and criteria for selecting presentation methods. Text can convey brief quantitative information and interpretation, while tables and graphs are best for larger datasets.

Lecture notes on Basic Statistics (Stat 1011) Chapter 2 Methods of data collection and presentation Page 2 set by Habib M. The purpose for which the data are collected and compatible with the present problem. The nature and classification of data is appropriate to our problem. There are no biases and misreporting in the published data.

Frequency tables are useful methods of presenting data; they do, however, have their limitations. With large amounts of data graphical presentation methods are often clearer to understand. Here, we look at methods for producing graphical representations of data …

2023年12月20日 · The document discusses various methods for organizing and presenting numerical data, including stem-and-leaf plots, frequency distributions, histograms, and cumulative distribution graphs. It provides examples of each method and explains how to construct them to efficiently communicate quantitative information from data sets.

2014年3月13日 · This document discusses various methods of data presentation. It describes quantitative and qualitative data and how to construct frequency distributions through grouping data into classes and calculating frequencies.

2024年6月8日 · METHODS OF DATA COLLECTION AND PRESENTATION Data collection • Data: are the values/measurements that the investigator collects from what he observes. • The data must be collected in scientific manner in order to keep the reality of the conclusions. • Data collection: is the process gathering data or information from its source.

LECTURE II- METHODS OF DATA PRESENTATION (1) Raw data are data collected that have not been organized numerically. (2) An array is an arrangement of raw numerical data in ascending or descending order of magnitude. The difference between the largest and smallest numbers is called the range of the data.