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

Math

Study Guide 2.2-2.3

TermDefinition
Frequency Distribution shows how a data set is partitioned among all of several categories(or classes)by listing all of the categories along with the number of data values in each of the categories
Lower class limits are the smallest numbers that can actually belong to different classes
Upper class limits are the largest numbers that can actually belong to different classes
Class boundaries are the numbers used to seperate classes, but without the gap created by class limits .5 1-2 2.5
class midpoints are the values in the middle of the classes that can be found by adding the lower class limit to the upper class limit and dividing the sum by two
class width is the difference between two consecutive lower class limits or twio consecutive lower class boundries 60-69 70-79 class width is 10
histogram basically a graphic version of a frquency distribution. horizontal scale: Use class boundries or class midpoints Vertical scale: use the class frequncies
Relative frequency distribution includes the same class limits as a frequency distribution, but the frequncy of a class is replaced with a relative frequncies( a proportion) or a percentage frequncy ( a percent)
cumulative frequncy It adds up like 60-69 has 5 so anything under 70 has 5 but 70-79 has 5 so anything under 80 is 10
Created by: jking009
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