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

Statistics

QuestionAnswer
stem and leaf plot a visual representation of data in which the unit’s and ten’s are represented in separate columns
statistics collecting, organizing, analyzing, interpreting data and drawing conclusions based on the data
measures of central tendencies statistical values generally located toward the center of a distribution
frequency polygon a line graph which connects midpoints of the histogram bars
data value the numerical value associated with a data item
midrange value found by averaging the highest and lowest data values
data numerical information
mean arithmetic average of all numerical data items
grouped frequency distribution data items organized into appropriate numerical groups
histogram bar graph in which bars touch and the frequency is the vertical axis
mode data item with the greatest frequency
median the middle value when data items are arranged in order from least to greatest
inferential statistics draws conclusions from collected data
descriptive statistics concerned with collecting, organizing, summarizing, & presenting data
sample a subset or subgroup of the population
population set containing all people or objects described & analyzed by data collector
random sample sample obtained in such a way that every element in the population has an equal chance of being selected for the sample
range difference between the highest and lowest values in a data set
normal distribution a distribution of data in which the mean, median, and mode are all equal
z-score describes how many standard deviations a data item in a normal distribution lies above or below the mean
Created by: mcchesney