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

Tests 11 & 12 Review

Original Price, Percent of Change, Simple Interest, Probability, Statistics

TermDefinition
Circumference of a Circle C = pi * d d = diameter
Area of a Circle A = pi * r^2 r = radius
Diameter a straight line going through the center of a circle connecting two points on the circle; twice the length of the radius
Radius the distance from the center to the edge of a circle; half the length of the diameter
Probability the chance that something will happen; the number of ways the event can occur over the total number of possible outcomes; ranges from 0 (0%) - 1.0 (100%)
Sample Space a list of all the possible outcomes; each outcome should be written in parentheses with a comma between events. For example (Heads, 6) represents flipping a heads on a coin and then rolling a 6 on a number cube
Impossible Event never going to happen; probability = 0 or 0%
Certain Event definitely going to happen; probability = 1/1 or 1.0 or 100%
Independent Events the outcome of one event DOES NOT affect the probability of the other event; example: rolling a number cube and then flipping a coin
Dependent Events the outcome of one event DOES affect the probability of the other event; example: picking a jelly bean from a jar, eating it, and then picking a second
Theoretical Probability what you expect to happen
Experimental Probability what actually happens
Simulation an experiment designed to model the action in a given situation. For example, flipping a coin could be used as a simulation for having a boy or girl baby.
Mean average - add up all the numbers and divide by how many numbers there are
Median the middle number when the numbers are listed in order from least to greatest
Mode the number that appears most often
Range the difference between the highest value and lowest value
Interquartile Range the difference between the third quartile and the first quartile; shows how spread out the data is around the median
Box and Whisker Plot shows the distribution of data - the first dot represents the lower extreme, the second dot represents the first quartile, the third dot represents the median, the fourth dot represents the third quartile and the last dot represents the upper extreme.
Biased Sample An unfair sample; the results of a biased sample are NOT VALID
Unbiased Sample A fair sample; the results of an unbiased sample ARE VALID
Simple Random Sample An unbiased sample where everyone equally likely to be chosen to be surveyed
Systematic Random Sample An unbiased sample where people are chosen according to a system or time interval
Convenience Sample The people surveyed are easily accessed
Voluntary Response Sample The people surveyed choose to respond to the survey question; they voluntarily respond
Created by: Math7
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