#34, Raw Moments - Moments about an Arbitrary Point

This video explains how to find raw moments i.e., moments about an arbitrary point of an individual series data, a discrete series data and a continuous frequency distribution.

[@PankajKajal-kl1eg]

thank you mam...
after a long time i got an amazing teacher on you tube......
..👌👌👌👌👌

[@Meerabai21]

Hey v
Can you please help in this question??
First four moment of distribution of point 3 are -2,10,-25,50then find value of 4th moment about point 5

[@apparacademy4616]

ruclips.net/video/4AR-90PHtnc/видео.html

[@apparacademy4616]

Plz check this video in order to solve the above mentioned question.

[@Meerabai21]

Thank you

[@annagatwa6621]

Can you help me this question please
The first four moments of a distribution about the value 4 of the variable are -15,17,-30 and 108
a,find the first four moments about the mean
b,find 1st for moment about the origin

[@apparacademy4616]

Hi
This question is based on specific formulas that are not discussed in the video.
Will upload a video solving this question within a week.

[@annagatwa6621]

@@apparacademy4616 oky am waiting

[@apparacademy4616]

Hello
The above data provided is incorrect.
Because that gives second central moment as a negative value and that is not possible. Since second moment about mean is variance and variance is always positive.
Will upload a video with a different example.

[@annagatwa6621]

@@apparacademy4616 thanks much

[@koustabbhattacharjee]

I have a question that if the arbitrary no is not given in a set of given data then can we take any value for A?

[@apparacademy4616]

When we are saying raw moments we are simply talking about moments about an arbitrary point. Raw Moments will vary with arbitrary point.
Moments about arbitrary point 2 will be different from moment about aribtrary point 4.
So if we are asked to calculate raw moments, arbitrary point will always be mentioned because answer will change with each value of arbitrary point.

[@koustabbhattacharjee]

@@apparacademy4616 thanku for ur reply....i know that what r saying. Now i m clear. Thanku❤️

[@pratikshyaadha4872]

Mam if A value is not given then what should I put the value of A?

[@KamrulHasan-kn7bv]

Mam,you made a mistake in your video, when you wrote the formula of Moments about arbitrary point for ungrouped data
You didn’t wrote r in the power of (X-A).
Though it’s not a major mistake.but yea i think that, my comment will be helpful for other students.

[@rubayattasmia4492]

Thanks mam ❤️

[@mdahad5371]

Here is the mistake in ungrouped formula!!
^n mistake!!

[@apparacademy4616]

Noted.
Will upload a new video with the correction.
Thanks