ElaKiri Community
Downloads
Go Back   ElaKiri Community > General > ElaKiri Help
Reload this Page ගනන් උදව්වක්
Reply
 
Thread Tools
(#11)
Old
wolvoring wolvoring is offline
Senior Member
wolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nice
 
Posts: 1,143
Join Date: Apr 2017
Location: www.rumansala.com & 127.0.0.1
Send a message via AIM to wolvoring
08-15-2018, 03:58 PM

උදාහරණයකට 20 ,45 ,70 විචලතාව
හොයන්නෙ කෝමද ?
Reply With Quote
(#12)
Old
madhawavish's Avatar
madhawavish madhawavish is offline
Senior Member
madhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of lightmadhawavish is a glorious beacon of light
 
Posts: 5,049
Join Date: Sep 2014
Location: the universe
08-15-2018, 04:52 PM

Quote:
Originally Posted by wolvoring View Post
උදාහරණයකට 20 ,45 ,70 විචලතාව
හොයන්නෙ කෝමද ?
20 ,45 ,70

x̄ =මධ්‍යනය = (20 +45 +70)/3 = 45

අපගමනය ......20 - 45 = -25
45- 45 = 0
70- 45 = 25


ආපු ඒව වර්ගකරල එකතුකරන්ඩ.. (-25)^2 + 0^2 +25^2
=625 + 625= 1250

තිබ්බ දත්ත ගාණෙන් 1ක් අඩුකරල ආපු උත්තරේ ඒකෙන් බෙදන්ඩ..දැන් විචාතාවය,v එනව


v= 1250/ (n-1)
= 1250/ (3-1)= 1250/2
=625

Last edited by madhawavish; 08-15-2018 at 05:06 PM.
Reply With Quote
(#13)
Old
suranga_87's Avatar
suranga_87 suranga_87 is offline
Senior Member
suranga_87 has a spectacular aura aboutsuranga_87 has a spectacular aura about
 
Posts: 509
Join Date: May 2017
Location: Pannipitiya
08-15-2018, 05:03 PM

ado maru ban....mama ganan fail.....ganan walata asai hadanna be....
Reply With Quote
(#14)
Old
Standard Deviation's Avatar
Standard Deviation Standard Deviation is offline
Senior Member
Standard Deviation has a spectacular aura aboutStandard Deviation has a spectacular aura about
 
Posts: 732
Join Date: Apr 2018
08-15-2018, 05:12 PM

Quote:
Originally Posted by wolvoring View Post
උදාහරණයකට 20 ,45 ,70 විචලතාව
හොයන්නෙ කෝමද ?
Hello it is square of Standard Deviation
Reply With Quote
(#15)
Old
Standard Deviation's Avatar
Standard Deviation Standard Deviation is offline
Senior Member
Standard Deviation has a spectacular aura aboutStandard Deviation has a spectacular aura about
 
Posts: 732
Join Date: Apr 2018
08-15-2018, 05:14 PM

Quote:
Originally Posted by madhawavish View Post
20 ,45 ,70

x̄ =මධ්‍යනය = (20 +45 +70)/3 = 45

අපගමනය ......20 - 45 = -25
45- 45 = 0
70- 45 = 25


ආපු ඒව වර්ගකරල එකතුකරන්ඩ.. (-25)^2 + 0^2 +25^2
=625 + 625= 1250

තිබ්බ දත්ත ගාණෙන් 1ක් අඩුකරල ආපු උත්තරේ ඒකෙන් බෙදන්ඩ..දැන් විචාතාවය,v එනව


v= 1250/ (n-1)
= 1250/ (3-1)= 1250/2
=625
Mcn if it is sample only divide by (n-1)
For population divide by n
afaik that is correct ?
Reply With Quote
(#16)
Old
wolvoring wolvoring is offline
Senior Member
wolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nice
 
Posts: 1,143
Join Date: Apr 2017
Location: www.rumansala.com & 127.0.0.1
Send a message via AIM to wolvoring
laugh 08-16-2018, 10:25 AM

Quote:
Originally Posted by Standard Deviation View Post
Mcn if it is sample only divide by (n-1)
For population divide by n
afaik that is correct ?
Thankx broo
Reply With Quote
(#17)
Old
wolvoring wolvoring is offline
Senior Member
wolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nicewolvoring is just really nice
 
Posts: 1,143
Join Date: Apr 2017
Location: www.rumansala.com & 127.0.0.1
Send a message via AIM to wolvoring
laugh 08-16-2018, 10:25 AM

Quote:
Originally Posted by madhawavish View Post
20 ,45 ,70

x̄ =මධ්‍යනය = (20 +45 +70)/3 = 45

අපගමනය ......20 - 45 = -25
45- 45 = 0
70- 45 = 25


ආපු ඒව වර්ගකරල එකතුකරන්ඩ.. (-25)^2 + 0^2 +25^2
=625 + 625= 1250

තිබ්බ දත්ත ගාණෙන් 1ක් අඩුකරල ආපු උත්තරේ ඒකෙන් බෙදන්ඩ..දැන් විචාතාවය,v එනව


v= 1250/ (n-1)
= 1250/ (3-1)= 1250/2
=625
Thanx broo
Reply With Quote
(#18)
Old
pranathlcp's Avatar
pranathlcp pranathlcp is offline
Senior Member
pranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of lightpranathlcp is a glorious beacon of light
 
Posts: 6,223
Join Date: Jul 2009
Location: Hogwarts School of Witchcraft and Wizardry
08-16-2018, 07:45 PM

Quote:
Originally Posted by Standard Deviation View Post
Mcn if it is sample only divide by (n-1)
For population divide by n
afaik that is correct ?
Yes machan, for samples, you need to divide by (n-1) and for populations, you have to divide by n.

Your profile name is somewhat interesting. Following a stat degree?
Reply With Quote
(#19)
Old
Standard Deviation's Avatar
Standard Deviation Standard Deviation is offline
Senior Member
Standard Deviation has a spectacular aura aboutStandard Deviation has a spectacular aura about
 
Posts: 732
Join Date: Apr 2018
08-18-2018, 09:47 PM

Quote:
Originally Posted by pranathlcp View Post
Yes machan, for samples, you need to divide by (n-1) and for populations, you have to divide by n.

Your profile name is somewhat interesting. Following a stat degree?
Not a stat dig
did some stat subjects
and when I was creating dis account SD was in the mind every time
Reply With Quote
(#20)
Old
Standard Deviation's Avatar
Standard Deviation Standard Deviation is offline
Senior Member
Standard Deviation has a spectacular aura aboutStandard Deviation has a spectacular aura about
 
Posts: 732
Join Date: Apr 2018
08-18-2018, 09:50 PM

Quote:
Originally Posted by wolvoring View Post
දන්නවද deta 3 ka version eka hoyanna

Suthraya dapalla koo
Sample ekaka or population ekaka varience eka hoya hati kyla ahpn
version newe varience
Reply With Quote
Reply

Bookmarks

Tags
hariyata ahapiya, pahadili na hu*

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Copyright © 2006 - 2011 ElaKiri™ Beta2.Evo vBulletin, vBa iBproArcade Subdreamer I-Magic MKv

Page generated in 0.02519 seconds with 9 queries