Save
Upgrade to remove ads
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

STATS - Exam 1

STATS

TermDefinition
Categorical Value Divides the cases (units) into groups.
Quantitative Variable Measures a numerical quantity for each case.
Explanatory Variable A factor that explains, predicts, or causes changes in another variable.
Response Variable The outcome/ result that is measured, observed, or studies in an experiment to see hoe it changed when other factors are modified.
Population Includes all individuals or objects of interest.
Sample All the cases that data has been collected on.
Confounding Variable Offers a plausible explanation for an association between 2 variables of interest.
Observation Study A study in which the researcher does not actively control the value of any variable but simply observes the values as the naturally exist.
Experiment A study in which the researcher actively controls 1 or more of the explanatory variables.
p̂ Proportion for sample.
𝘱 Proportion for population
Sample Size (n) The number of cases in a sample.
x̄ Notation of sample mean.
μ Notation of population mean
Median Splits the data in half
Outlier An observed value that is notable distinct from the other values in a dataset.
Standard Deviation Gives a rough estimate of the typical distance of data from the mean.
s Notation for sample standard deviation.
σ Notation for sample population deviation.
Σ Sum
Z-Score A way to determine how unusual a single data value is that is independent of the units used.
Correlation Coefficient a measure of the strength and direction of linear association between 2 quantitative variables.
Positive Association Means that values of 1 variable tend to be higher when values of the other variable are higher.
Negative Association Means that values of 1 variable tend to be lower when values of the other variable are higher.
Linear Regression The process of fitting a line to a set of data.
Regression Line The line of best fit.
Created by: MaddieIcekamp
 

 



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