Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

U.10 - Glossary

Two-dimensional distribution

TermDefinition
Two-dimensional distribution The collective of two individual values wich correspond to two variables, x and y.
Scatter diagram The dots known that gives the representation of the distribution on a graph .
Correlation It's when there is a certain relationship between the values in the distribution.
Line of best fit It's the straight line that fits in the graph by the correlation because the scatter diagram is relatively narrow.
Correlation strenghts The correlation of two variables can be strong or weaker depending on how close the dots on the diagram are to the line of best fit
Positive correlation A correlation is positive when, if one variable, x, incrases, the other variable, y, also tends to incrase.
Negative correlation A correlation is negative when if a variable "x" incrases, variable "y" tends to decrase.
Zero or no correlation When there isn't relationship between two variables.
Correlation coefficient It's the correlation value represented using the letter "r".
Created by: mata.mirella
Popular Math sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards