Standard Deviation in R Seems to be Returning the Wrong Answer - Am I Doing Something Wrong

0 votes
An easy illustration of standard deviation calculation:

The result of d - c(2,4,4,4,5,5,7,9) sd(d) is

[1] 2.13809, however the result is 2, when calculated by hand. What do I not see here?
Jun 27 in Data Analytics by avinash
• 1,840 points
16 views

No answer to this question. Be the first to respond.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

Related Questions In Data Analytics

+1 vote
2 answers

Which function can I use to clear the console in R and RStudio ?

Description                   Windows & Linux           Mac Clear console                      Ctrl+L ...READ MORE

answered Apr 17, 2018 in Data Analytics by anonymous
48,914 views
0 votes
1 answer

How can I import a file in R without giving the destination/file path to the specified file?

You can use the window explorer to ...READ MORE

answered Aug 28, 2018 in Data Analytics by Abhi
• 3,720 points

edited Aug 28, 2018 by Vardhan 1,215 views
0 votes
1 answer

Shiny r ,I'm doing a dashboard and I can not replace in the table below the name of the column by choosing the selectinput.

Hi, When you want to change any input ...READ MORE

answered Aug 19, 2019 in Data Analytics by anonymous
• 33,010 points
389 views
+4 votes
0 answers

I was unable to cluster the data points using dbscan in R programming

After using dbscan package I was given with ...READ MORE

Feb 2, 2020 in Data Analytics by ramthotahappy
• 160 points
444 views
0 votes
1 answer

How to find out the sum/mean for multiple variables per group in R?

You can use the reshape2 package for ...READ MORE

answered Apr 12, 2018 in Data Analytics by DataKing99
• 8,240 points
2,617 views
0 votes
1 answer

Big Data transformations with R

Dear Koushik, Hope you are doing great. You can ...READ MORE

answered Dec 18, 2017 in Data Analytics by Sudhir
• 1,610 points
437 views
0 votes
2 answers

Transforming a key/value string into distinct rows in R

We would start off by loading the ...READ MORE

answered Mar 26, 2018 in Data Analytics by Bharani
• 4,660 points
482 views
0 votes
1 answer

Finding frequency of observations in R

You can use the "dplyr" package to ...READ MORE

answered Mar 26, 2018 in Data Analytics by Bharani
• 4,660 points
4,352 views
0 votes
1 answer

Left Join and Right Join using "dplyr"

The below is the code to perform ...READ MORE

answered Mar 27, 2018 in Data Analytics by Bharani
• 4,660 points
504 views
webinar REGISTER FOR FREE WEBINAR X
Send OTP
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP