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

Statistics

TermDefinition
standard deviation is a measure that is used to quantify the amount of variation or spread there is in a set of data, specifically from the mean
mean add up all the numbers in the data and divide by the total number of data
median (2nd quartile) the number that falls within the middle of the data when the data is organized from least to greatest
mode the number that appears most frequently
range the spread of data (subtract the largest number and the smallest number)
1st quartile the median of the lower half of data
3rd quartile the median of the upper half of data
interquartile range subtract Q3 and Q1
skewed data are symmetrical and have data that clusters toward one end
outlier is an observation point that is distant from other observations
dot plots a plot of each data value on a scale or number line
histograms a graph of data that groups the data based on intervals and represents the data in each interval by a bar
box plots a graph that provides a picture of the data ordered and divided into four intervals that each contains approximately 25% of the data
statistics is the study of numerical data
When data has an outlier or skewed, the _________ best represents the data. median
When data is not skewed or does not have an outlier, the _________ best represents the data. mean
Created by: KRago
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