Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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
remaining cards
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:
restart all cards
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

Stat Unit 6 Vocab

Probability Distributions

Probability Distribution provides probabilities for the possible values of a random variable; summarized by measures of the center (mean) and the spread (standard deviation)
Random Variable a numerical measurement of the outcome of a random event
Expected Value the mean of a probability distribution for a discrete random variable
Normal Distribution the probability distribution of a continuous random variable that has a symmetric bell-shaped graph specified by mean and standard deviation
Standard Normal Distribution it is the distribution of normal z-scores; the normal distribution with a mean = 0 and standard deviation = 1
Binary Data data that has one of two possible outcomes
Binomial Distribution the probability distribution of the discrete random variable that measures the number of successes X in n independent trials with the probability p of a success on a given trial.
Sampling Distribution the probability distribution of a sample statistic; specifies the probabilities for the values of the statistic for all possible random samples
Sampling Distribution of the Mean centered at the population mean
Standard Error the standard deviation that describes the spread of the sampling distribution of the sample mean
Created by: sonicnerd23