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 30 in Data Science by avinash
• 1,840 points
21 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 Science

0 votes
1 answer

Why is it not advisable to use attach() in R, and what should I use instead?

There is one more option that applies ...READ MORE

answered Jun 24 in Data Science by Sohail
• 2,960 points
18 views
0 votes
0 answers
0 votes
0 answers

How to manually find the minors of a matrix in R programming?

I have to write a function that ...READ MORE

Jul 5 in Data Science by avinash
• 1,840 points
8 views
0 votes
0 answers

Introduction to Statistical Learning with Applications in R Figure Codes

I recently bought the following book: An Introduction ...READ MORE

Jun 1 in Data Science by avinash
• 1,840 points
33 views
0 votes
1 answer

Difference between the == and %in% operators in R

percent in percent "returns a vector of ...READ MORE

answered Jun 20 in Data Science by Sohail
• 2,960 points
21 views
0 votes
1 answer

Difference between the == and %in% operators in R

According to help('percent in percent'), percent in ...READ MORE

answered Jun 23 in Data Science by Sohail
• 2,960 points
15 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