Calculation of Standard Deviation for Discrete Series of Grouped Data

Botany/ Biostatistics/ Standard Deviation for UG/ PG students and other competitive exams

[sourabhbhandare]

Sir your method is very simple it will cover all concept

[SandeepYadav-dfuo]

Very good...and . comfortably... explain,

[m.junaidsheikhlearningproj]

Thank u sir. From M Junaid sheikh from Aj&k ❤️💯

[mamtadevisah]

but there is a mistake 😕 that in shortcut method the square of (-10) is 100 not -100 😄😄😄 but answer is write because if you multiply minus to minus u will get plus but u had stil written minus.
i think u have to practice more. Because practice make man perfect. 😁😁😁

[dipikoch]

Short cut method jyada long lag gaya hmko 😂

[anisaadhila]

Any minus number square is positive, -10square is + 100.
You didn't watch it

[aijazahmed]

Sir (-10) square 100 hoga I mean k plus ka hoga

[himanisharma]

Sir I tried this question by another method answer is 7. Something but your answer is 6. Something... aisa thodi na hota h har method se alg answr toh nhi aataa 🙁

[prabha]

Sir how can we identify it is ungrouped and grouped data

[khubaibazmat]

The short cut method is more lengthy than the direct method.
Then why it is called short cut method...??

[pratikshapandey]

1.84-(-0.04) = 1.88, you have written 1.80?

[amitpandeyap]

Formula glt h sir variance ka sumf-1 hota h upon me