Data Management

Data Management

Statistics and Probability

Learning Objectives

1. To understand different ways of gathering data.

2. To organize data.

3. ​To construct tables and charts for data.

Statistics and Probability

Collection of Data

It is important that the researcher knows what data is needed, where and how to get the data.

Statistics and Probability

Data needed in a research may be collected using any of the following methods:​

1. Interview method

2. Questionnaire method

3. Document method

4. Observation method

5. Experiment method​

Statistics and Probability

​Response rate is a very important aspect. A low response rate may affect the validity of the conclusion to be made. Usually, the questionnaire method results in low response rate.

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Data Collection

Multiple Choice

Which method of gathering data is best foe this situation?

High school students' preference for energy drink

• Experiment Method

• Interview Method

• Questionnaire Method

• Observation Method

Multiple Choice

Which method of gathering data is best foe this situation?

Behavior of 1 year old babies

• Experiment Method

• Document Method

• Questionnaire Method

• Observation Method

Multiple Choice

Which method of gathering data is best foe this situation?

The effect of medicine on mice

• Interview Method

• Document Method

• Questionnaire Method

• Experiment Method

Multiple Choice

Which method of gathering data is best foe this situation?

How to debone bangus

• Interview Method

• Document Method

• Observation Method

• Experiment Method

Multiple Choice

Which method of gathering data is best foe this situation?

Population in the Philippines by region over a 5-year period

• Interview Method

• Document Method

• Observation Method

• Experiment Method

Different ways of presenting data gathered:

Statistics and Probability

where data is exposed through printed or spoken words, such as through printed or oral media.

Statistics and Probability

​Textual

Form

where data is organized and presented through the use of various kinds of graphs.

Types of graphs: line graph, bar graph, histogram, pie graph, pictograph, cartograph, dot graph, stem-and-leaf plot and box and whiskers​

Statistics and Probability

​Graphical Form

where data is arrayed in rows and columns.​

Statistics and Probability

Tabular

Form

Frequency Distribution Table

Histogram