Correlation analysis
With the help of correlation analysis, the linear relationship between variables can be examined. The strength of the correlation is determined by the correlation coefficient, which varies from -1 to +1. This means that correlation analyses can be used to make a statement about the strength and direction of the relationship between two variables.
Interpret correlation
Positive correlation
A positive correlation exists when larger values of variable A are accompanied by larger values of variable B. Body size and shoe size, for example, correlate positively, resulting in a correlation coefficient that lies between 0 and 1, i.e. a positive value.
Negative correlation
A negative correlation exists when larger values of variable A are accompanied by smaller values of variable B. The product price and the sales volume usually have a negative correlation; the more expensive a product is, the lower the sales volume. In this case, the correlation coefficient lies between -1 and 0, i.e. it takes on a negative value.
More information on correlation analysis:
datatab.net/tutorial/correlation
And here is the online correlation calculator:
datatab.net/statistics-calcul...
Пікірлер: 34
If you like, please find our e-Book here: datatab.net/statistics-book 😎
WOW. Data tab site is so, so awesome. I am learning statistics now, and these videos are super useful. Just let them keep coming !!!!
This is a really great site. Thank you for taking the time to put this together and sharing with us.
@datatab
7 ай бұрын
Our pleasure!
Thanks for your explanation!
Very well explained!
Thank you soooooooooooo much , it is really sooooooooooooo helpful
Thank you so much .....really helpful video
Very useful information. Thank you!
@datatab
2 жыл бұрын
Glad it was helpful! Regards, Hannah
Thank youuuu! Amazing!
@datatab
2 жыл бұрын
Glad you like it! Regards Hannah!!!
excellent explanation. Thank you so much
@datatab
Жыл бұрын
Glad it was helpful!
Is it the Pearson correlation or the Spearman correlation that is used for variables with an ordinal scale level?
@lukeasante7893
23 күн бұрын
Spearman
Thank You ... GOOD JOB :)
@datatab
2 жыл бұрын
Thanks for the Feedback: ) regards hannah
Excellent voice
Is it necessary to have the same number of observations for every variable to find the correlation?
@TheMightyWej
11 ай бұрын
Yes, there needs to be the same number of x and y terms for any calculations to be completed. You need to extrapolate (assume) values for the points you are missing, usually using a mean value will do fine.
❤ thanks
Mam can you arrange test for a correlation chapter..as soon as possible...
@datatab
Жыл бұрын
I will try!
New sub and lovely voice❤
@datatab
8 ай бұрын
: ) many thanks : )
Thank you 💓😊😊😊😊😊
@datatab
2 жыл бұрын
You're welcome 😊
Nice class 👏
@datatab
Жыл бұрын
Thank you! 😃
Saying to pay for that
@datatab
3 жыл бұрын
🙂
@dat7819
3 жыл бұрын
kzread.info/dash/bejne/dG2fspqOks64lZs.html
@dat7819
3 жыл бұрын
@@datatab kzread.info/dash/bejne/dG2fspqOks64lZs.html