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# NCERT Solutions for Class 11 Statistics Chapter 9

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## NCERT Solutions for Class 11 Statistics Chapter 9 - Use of Statistical Tools

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NCERT Solutions Class 11 Statistics Chapter 9 explains the meaning of statistics and their applications in various fields. This chapter makes the students aware that statistical tools play a vital role in several industries. The subject-matter experts at Vedantu have solved all the questions given in this chapter in the NCERT Solutions Class 11 Statistics Chapter 9. By following these NCERT Solutions, students can develop a deeper understanding of the concepts covered in Class 11 Statistics Chapter 9. They can download the PDF file of these NCERT Solutions and refer to them offline as well.

The NCERT Solutions for Class 11 Statistics Chapter 9 PDF will be uploaded soon.

1. What is statistics? Explain its importance?

Statistics is a branch of mathematics that has several quantified tools, methods, representations to find values by taking huge data and it helps to forecast the outcomes. We have various kinds of tools like:Â

• Mean

• Regression analysis

• Skewness

• Kurtosis

• Variance

• Analysis of variance

All these are utilized at various steps to perform tasks in different industries.Â

2. If you are supposed to start a dairy business, consider it as a project, and explain the steps involved in it?

First, we need to forecast the amount of milk that we need to sell per month or an annum. For that purpose, we need to consider the available resources like capital, number of cows or buffaloes through which we can get the milk, and how far they are able to give the milk that can be measured in liters. Then we need to search for the customers like surveying the people regarding their utilization based on the family size of each house. Then represent all the data in a tabular form and estimate the results by calculating the average or mean for the data. Now we can observe the findings like if the requirement is 80 liters, we need to produce 100 liters of milk and the expenses may be 1 lakh rupees, and the earnings may come 120,000 rupees wherein the profit is 20,000 per month if everything goes well.