Test: Diagrammatic Representation of data

# Test: Diagrammatic Representation of data - SSC CGL

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## 10 Questions MCQ Test Statistics for SSC CGL - Test: Diagrammatic Representation of data

Test: Diagrammatic Representation of data for SSC CGL 2023 is part of Statistics for SSC CGL preparation. The Test: Diagrammatic Representation of data questions and answers have been prepared according to the SSC CGL exam syllabus.The Test: Diagrammatic Representation of data MCQs are made for SSC CGL 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Diagrammatic Representation of data below.
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Test: Diagrammatic Representation of data - Question 1

### What is the primary difference between primary data and secondary data?

Detailed Solution for Test: Diagrammatic Representation of data - Question 1
Primary data is collected for a specific purpose, such as a research study, while secondary data is data that has been collected by someone else for a different purpose but is being used for a new analysis or study. Primary data is typically collected with a clear objective in mind, while secondary data is more generalized and can be used for various purposes.
Test: Diagrammatic Representation of data - Question 2

### What is the main advantage of using diagrammatic data presentation?

Detailed Solution for Test: Diagrammatic Representation of data - Question 2
The main advantage of using diagrammatic data presentation is that it is quick to grasp and easy to understand. Diagrams make complex data more accessible to a wider audience, especially those who may not have a deep understanding of statistics. They provide a visual representation that simplifies data interpretation.
Test: Diagrammatic Representation of data - Question 3

### Which type of data series includes items that are exactly measurable and complete?

Detailed Solution for Test: Diagrammatic Representation of data - Question 3
Discrete series includes items that are exactly measurable and complete. Each unit of data in a discrete series is separate and distinct, with no divisions or intervals. For example, the number of students obtaining specific marks is a discrete series.
Test: Diagrammatic Representation of data - Question 4
Which type of classification divides data based on numerical quantities like height and weight?
Detailed Solution for Test: Diagrammatic Representation of data - Question 4
Classification according to class-intervals divides data based on numerical quantities like height, weight, and production. This type of classification is used when direct measurements of data are possible, and data fall into various numeric ranges or intervals.
Test: Diagrammatic Representation of data - Question 5
What is the function of tabulation in statistics?
Detailed Solution for Test: Diagrammatic Representation of data - Question 5
The function of tabulation in statistics is to present data in a systematic and orderly manner. Tabulation arranges classified data in a table with columns and rows, making it easier for analysis and interpretation. It serves as a bridge between data collection and data analysis.
Test: Diagrammatic Representation of data - Question 6
What is the primary purpose of indirect oral investigation in data collection?
Detailed Solution for Test: Diagrammatic Representation of data - Question 6
The primary purpose of indirect oral investigation in data collection is to cross-examine individuals with knowledge about the inquiry. This method involves gathering information from people who have insights into the subject of the investigation, typically through interviews or discussions.
Test: Diagrammatic Representation of data - Question 7
Why is it important to define the units of data before collecting information?
Detailed Solution for Test: Diagrammatic Representation of data - Question 7
It is important to define the units of data before collecting information to ensure data accuracy. Clear definitions of units help in collecting relevant and precise data, reducing the chances of errors or misinterpretations.
Test: Diagrammatic Representation of data - Question 8
Which type of data is collected for a specific purpose and for the first time?
Detailed Solution for Test: Diagrammatic Representation of data - Question 8
Primary data is collected for a specific purpose and for the first time. It is gathered directly from the source with a clear objective in mind, such as conducting a research study or investigation.
Test: Diagrammatic Representation of data - Question 9
What is the purpose of a tabular presentation of data?
Detailed Solution for Test: Diagrammatic Representation of data - Question 9
The purpose of a tabular presentation of data is to present data systematically for analysis. Tabulation organizes data in a structured format with columns and rows, making it easier for researchers to perform data analysis and draw meaningful conclusions.
Test: Diagrammatic Representation of data - Question 10
What are cumulative frequencies in a class-interval classification?
Detailed Solution for Test: Diagrammatic Representation of data - Question 10
Cumulative frequencies in a class-interval classification are the frequencies added up from the top of the intervals. They represent the total number of items that fall within or below a specific class interval in the data. Cumulative frequencies help in understanding the distribution of data across different intervals.

## Statistics for SSC CGL

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## Statistics for SSC CGL

69 videos|90 docs|16 tests