Measure of Dispersion | Range, Quartiles, Mean Deviation, Variance and Standard Deviation

Measure of Dispersion | Range, Quartiles, Mean Deviation, Variance and Standard Deviation.
Range: Is the difference between the highest and the least values.

Quartiles divide a distribution in to four parts

Mean Deviation is the Arithmetic mean of all the absolute deviation from the mean.

The Variance is defined as: The average of the squared differences from the Mean. It is denoted by δ²

While Standard Deviation is the square root of Variance. It is denoted by δ

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[ce]

Before your class I don't know any thing but after listening the class I understood this topic, Thank you sir for your wonderful explanation...🙏🙏😊😊🙏☺️🙏🏼🙏🙏🙏

[aljebraschool]

As I listened to this lectured I got a sense of belonging because it enlightens me more as a Mathematics students myself and more importantly as I also engage in this topic on my channel currently!

Thanks prof

[tinodaisheganyani]

From Zimbabwe 🇿🇼 . Excellent Tambuwal Maths

[olorunwaamstel]

Thanks a lot I understand a lot better now

[Annie-oebi]

Apny bht acha smjhaya sir . Thanks alot.

[alukophebe]

this will help me for tomorrow’s tests
thank you so much sir

[faisalmuhammad]

We thank you so much please we're bagging for the continuation of integration by parts
Please be Patience with us
Allah ya taimaki Mai taimako

[maimunahussaini]

Alhamdulillah, I finally got dis, have been trying to learn dis, thanks alot

[sdclimax_comedy]

sorry i don't understand what the sample mean there....is it a code word for a grouped data?

[fredducaunt]

Heyy there is a problem with the formula for mean absolute deviation...
"for sample data!"🤔
Sum(abs(x-X))/(n-1) 🤔
Isn't this "sample issue", "(n-1)"applied only for standard deviation...
The category for sample data??

[emmanuelosei-wusu]

Hello sir, how would one know if a given set of data is from a population or from a sample since it's formula for both varies. Thanks..
Emmanuel from Ghana (West Africa)

[hajiamariamarmiyao]

Hello sir, please I have a question. Does it mean that after u find your standard deviation, and you square the answer, u are not supposed to break it down into decimal?

[sirotrs]

Sir pls what does it mean to say absolute form

[legendaryfemi]

i really appreciate the video sir. Thank you so much sir

[prishachauhan]

Ab tou sirf standard deviation rah gaya or sab tou delete kar diye cbse ne