Important Questions: Organisation of Data | Economics Class 11 - Commerce PDF Download

Q1: Define class limit.
Ans: Class limits are the specific numerical values that define the boundaries of a class or category in a frequency distribution. Each class has two limits: a lower limit, which is the smallest value included in the class, and an upper limit, which is the largest value included in the class. Class limits are essential for organizing data into intervals for analysis.

Q2: What is an exclusive series?
Ans: An exclusive series is a type of data series where the upper limit of one class does not overlap with the lower limit of the next class. In other words, each item or value in the dataset belongs exclusively to a specific class interval, and there is no ambiguity or overlap between the intervals.

Q3: Define individual series.
Ans: An individual series is a data presentation format where items are listed separately without grouping them into classes or categories. Each item is distinct and is treated individually, without any grouping based on similarities or characteristics.

Q4: What is frequency?
Ans: Frequency refers to the number of times a particular value, event, or item occurs in a given dataset or experiment. It is a fundamental concept in statistics and is often used to analyze patterns, trends, and behaviors within the data.

Q5: Define variables.
Ans: Variables are characteristics or attributes that can vary and are measured or observed in a study. They represent different values or conditions and can influence the outcomes of experiments or research. Variables are essential in statistical analysis and scientific research.

Q6: What is an inclusive series?
Ans: An inclusive series is a type of data series where the upper limit of one class overlaps with the lower limit of the next class. In this arrangement, items or values in the dataset can belong to multiple classes simultaneously. Inclusive series are often used when data points can fall into more than one category, allowing for a comprehensive and inclusive representation of the data.

Q7: What do you mean by frequency distribution or frequency series?
Ans: Frequency distribution, also known as a frequency series, is a tabular representation of data that shows the frequency (number of occurrences) of each distinct value or range of values in a dataset. It provides a clear overview of the distribution pattern of the data, allowing for easier analysis and interpretation.

Q8: Explain the magnitude of a class interval.
Ans: The magnitude of a class interval refers to the numerical difference between the upper limit and the lower limit of a class. It determines the width of the interval and plays a crucial role in creating an appropriate frequency distribution. Choosing an appropriate class interval magnitude is important for representing data accurately and meaningfully.

Q9: What is classification?
Ans: Classification refers to the systematic arrangement of objects, ideas, or data into distinct groups or categories based on their similarities, differences, or some specific criteria. It helps in organizing information for better understanding and analysis.

Q10: Explain discrete series.
Ans: In a discrete series, data is presented in distinct, separate values or categories. Each value in the series is unique and does not have intermediate values. Discrete series are often used to represent data that can only take specific, distinct numerical values, such as the number of children in a family or the number of cars owned by individuals.