Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
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

Year 8 Data

Definitions and Facts from the NSW Year 8 DataTopic

TermDefinition
bias something unwanted that causes a sample to not truly represent the population
categorical data non-numerical data that can be classified into categories (e.g people’s eye colour, or their favourite rugby team)
data a collection of facts or raw information
dot plot a special column graph of dots for a small set of numerical data
frequency how often a score appears in a data set
frequency histogram a special column graph that shows the frequencies of numerical data
frequency polygon a special line graph that shows the frequencies of numerical data
quantitative data numerical data that can be measured or counted (e.g peoples height or the number of pets they own)
Stem-and-leaf plot a ‘sideways column graph that lists the numerical data in order
analyse to examine something carefully by breaking it down into its parts or features
data set a collection of data or scores about the same subject
mean the average value of a data set, found by dividing the sum of scores by the number of scores
measure of location a general name for the average, middle or typical value of a data set (e.g the mean, median or mode)
median the middle score of a data set when the scores are arranged in order
mode the most common score or scores of a data set
range the difference between the highest score and lowest score in a data set
scatter diagram a diagram of dots on a number plane that illustrates a relationship between the variables
Created by: wdobson