T.R. Jain and V.K. Ohri Solutions for Class 11 Statistics for Economics Chapter 11 – Measures of Dispersion is regarded as an important concept to be studied thoroughly by the students. Here, we have provided T.R. Jain and V.K. Ohri Solutions for Class 11.
|Subject||Statistics for economics|
|Chapter Name||Measures of dispersion|
|Number of questions solved||03|
|Category||T.R. Jain and V.K. Ohri|
Chapter 11 – Measures of Dispersion covers the following concepts:
- Concept and measures of dispersion
- Methods of measuring dispersion
- Mean deviation
- Standard deviation
T.R. Jain and V.K. Ohri Solutions for Class 11 Statistics for Economics Chapter 11 – Measures of Dispersion
Find the interquartile range, quartile deviation and coefficient of quartile deviation from the following data:
Firstly, arrange the data in the ascending order:
|N = 7|
= Size of 2nd item = 18 marks
= Size of 6th item = 28 marks
Interquartile range = Q3 – Q1 = 28-18 = 10
What are the methods of Standard Deviation?
The two standard methods of deviation are:
- Direct method
- Short-cut method
Dispersion is the measure of the extent to which the different items tend to disperse away from the central tendency.
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