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 - Exam 2

QuestionAnswer
value measuring some characteristic of a population parameter
value measuring some characteristic of a sample statistic
variance of a sample symbol s²
standard deviation of a sample symbol s
variance of a population symbol σ²
standard deviation of a population symbol σ
mean of a sample symbol x with a line above it
mean of a population symbol mu
process that leads to well defined results called outcomes probability experiment
set of all possible outcomes sample space
if two events can not occur simultaneously mutually exclusive
if one event does not affect the probability of another event statistically independent
The 3 approaches to probability are ____________. classical, relative frequency, subjective
Use classical approach when __________. sample space can be listed, randomness (no bias)
Use relative frequency approach when __________. sample space cannot be listed, bias exists
probabilities based on expert opinions subjective approach
The 4 conditions of binomial experiments are ____________. fixed number of trials, trials are independent, probabilities remain the same per trial, 2 outcomes per trial (success & failure)
number of trials symbol n
number of successes in n trials symbol x (r on calculator)
probability of success per trial symbol p
probability of failure per trial symbol q
factorial symbol !
complement of A symbol A with a line over it
table that lists all possible values of a random variable (x) along with its corresponding probabilities discrete probability distribution
Created by: K1N1V
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