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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[@tinodaisheganyani5729]

From Zimbabwe 🇿🇼 . Excellent Tambuwal Maths

[@ce1086]

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...🙏🙏😊😊🙏☺️🙏🏼🙏🙏🙏

[@tambuwalmathsclass]

You are welcome

[@ce1086]

Sir please explain problems clearly with out doubts sir ........

[@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

[@alukophebe2118]

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

[@maimunahussaini3795]

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

[@tambuwalmathsclass]

Welcome

[@Annie-oe6bi]

Apny bht acha smjhaya sir . Thanks alot.

[@faisalmuhammad2880]

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

[@tambuwalmathsclass]

Yes I will continue in sha Allah

[@faisalmuhammad2880]

@@tambuwalmathsclass
Thanks

[@ESOMNOFUONLINEMATH]

Keep up the good work

[@sdclimax_comedy5451]

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??

[@user-cv4tt6nh5b]

Thank you ❤❤❤❤

[@Susybrown21]

Thank you

[@adoabimaira8907]

Cool sir very helpful

[@judymugume614]

I love this teacher

[@tambuwalmathsclass]

Thank you 🙏

[@mustafakamal9862]

Good job 💖

[@nchimunyangandu-ku5ve]

Cheers 🎉

[@user-sq9nn3sk7m]

Thank yooooooooou soooooo much!!!!!!!!❤️❤️❤️❤️❤️❤️❤️

[@legendaryfemi5697]

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

[@tambuwalmathsclass]

You are welcome

[@barongrand9389]

Good job sir

[@tambuwalmathsclass]

🙏🙏

[@jakkulavinay1228]

Awesome explanation sir❤️

[@tambuwalmathsclass]

Thanks 🙏

[@jakkulavinay1228]

@@tambuwalmathsclass 🙏🏻

[@emmanuelosei-wusu4513]

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)

[@tambuwalmathsclass]

It will be stated in the question

[@hajiamariamarmiyao6807]

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?

[@tambuwalmathsclass]

You can do that

[@muskanagrawal7428]

From india....thanks😊

[@tambuwalmathsclass]

🙏🙏🙏

[@ozioma2123]

Thank you sir

[@sirotrs8661]

Sir pls what does it mean to say absolute form

[@berniemubita8294]

Thanks I have understood

[@tambuwalmathsclass]

Great 👍

[@khadijanoureen8434]

Tysm sir 😭

[@perpjoey]

Thank youuuu sir

[@mastanaarthi4618]

Thanks a lot sir🥰..!!🙏🥳

[@tambuwalmathsclass]

🙏🙏

[@cocacc1922]

So nice

[@kaainjoemmanuel7862]

Good

[@prishachauhan4546]

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

[@muhammadahmadkhan3304]

🌌🌠☺