Explanation:

Justification:

Statistics:

Statistics is defined as the ‘science of data’, which deals with collection, classification, summarization, organization and analysis of data, interpretation of numerical and categorical data, along with inferring about the nature of the data.

For an example, a researcher wants to find the average height of students of 7^th grade of a certain school. The researcher collects the height of all students of 7^th standard. Now the data should be organized in a well-defined manner or grouped into classes. The researcher uses statistics (mean) to find the average heights of the students, infer about the heights of 7^th grade students in general, and makes a conclusion.