UPSC Exam > UPSC Questions > The mean of 70 obs. Value of the data is 45. ...
Start Learning for Free
The mean of 70 obs. Value of the data is 45. If all obs. Values of the data
are multiplied by 2 then mean of resulting data is [obs. Means observed]
(a) 45 (b) 60 (c) 90 (d) None?
are multiplied by 2 then mean of resulting data is [obs. Means observed]
(a) 45 (b) 60 (c) 90 (d) None?
Most Upvoted Answer
The mean of 70 obs. Value of the data is 45. If all obs. Values of the...
Understanding Mean in Data
The mean is a measure of central tendency that represents the average of a set of values. In this scenario, we have 70 observations with a mean value of 45.
Effect of Multiplication on Mean
When we multiply all observations by a constant factor, the mean also gets multiplied by the same factor. Here’s how it works:
- Original Mean = 45
- Constant Factor = 2
Calculating the New Mean
To find the new mean after multiplying each observation by 2:
- New Mean = Original Mean × Constant Factor
- New Mean = 45 × 2 = 90
Conclusion
Thus, if all observation values of the data are multiplied by 2, the resulting mean becomes:
- (c) 90
This principle applies universally for any constant factor applied to all observations in a dataset. Multiplying the data values directly scales the mean proportionately by that factor.
The mean is a measure of central tendency that represents the average of a set of values. In this scenario, we have 70 observations with a mean value of 45.
Effect of Multiplication on Mean
When we multiply all observations by a constant factor, the mean also gets multiplied by the same factor. Here’s how it works:
- Original Mean = 45
- Constant Factor = 2
Calculating the New Mean
To find the new mean after multiplying each observation by 2:
- New Mean = Original Mean × Constant Factor
- New Mean = 45 × 2 = 90
Conclusion
Thus, if all observation values of the data are multiplied by 2, the resulting mean becomes:
- (c) 90
This principle applies universally for any constant factor applied to all observations in a dataset. Multiplying the data values directly scales the mean proportionately by that factor.
Attention UPSC Students!
To make sure you are not studying endlessly, EduRev has designed UPSC study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in UPSC.
|
Explore Courses for UPSC exam
|
|
Top Courses for UPSCView all
The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None?
Question Description
The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None?.
The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None?.
Solutions for The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? defined & explained in the simplest way possible. Besides giving the explanation of
The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None?, a detailed solution for The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? has been provided alongside types of The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? theory, EduRev gives you an
ample number of questions to practice The mean of 70 obs. Value of the data is 45. If all obs. Values of the data are multiplied by 2 then mean of resulting data is [obs. Means observed] (a) 45 (b) 60 (c) 90 (d) None? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup