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

Stats Ch 5

TermDefinition
Standardizing The process of eliminating units in order to compare and combine original variables that have different units and magnitudes.
Standardized Value A value found by subtracting the mean and dividing by the standard deviation.
Normal Model A useful family of models for unimodal, symmetric distributions.
Parameter A numerically valued attribute of a model, not data.
Statistic A calculated value from data to summarize aspects of the data, not based on a model.
z-score A number using a standardized value telling how many standard deviations a value is from the mean.
Standard Normal model N(0,1)
Nearly Normal Condition This can be assumed if a histogram of the data shows a distribution that is both unimodal and symmetric.
68-95-99.7 Rule The percents between +/- 1, +/- 2, and +/- 3 standard deviations from the mean.
Normal Percentile Corresponds to the z-value giving the percentage of values in a Normal distribution found at that z-score or below.
Created by: HowardGeometry