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

MMW unit IV

Measures of central location and Measures of Dispersion

QuestionAnswer
It represents the value of where data observations tend to cluster; represents entire mass of data by a single value. Measures of Central Location.
Which is a very sensitive measure that can only be used on interval or ratio data? Mean
If two sets of data have the same median, then the data must be the same. True or False? False
It is the measure of dispersion that depends only on the two most extreme values of data. Range
It is a measure that only considers order and is unaffected by extreme scores, also called the middle score. Median
It can be used for any levels of measurements; measures the most frequently occurring value in a data set. Mode
It describes how spread the data are and measures the variation of data values among themselves. Measures of dispersion
It a measure of dispersion that takes the difference between the greatest data and the least data value. Range
It makes use individual amount that each data values deviate from the mean. Standard deviation
When the data values have equal frequency the mode... does not exist
When the data sets have two most frequently occurring values, it is called? Bimodal
Class A has the mean of is 51.38, SD: 4.03 and sample variance of 16.24.. Whereas class B has a mean of 53, SD: 8.64, and sample variance of 74.65. Which class produced more consistent results? Class A
If the standard deviation of a mean is low it means that the mean is? Reliable
Data sets with three or more frequent data values is called? Multimodal
If the standard deviation is closest to zero there is a? lower data variability and a more reliable mean.
If the standard deviation is the variation in the data and the mean is? Data variation is high; Mean is less accurate.
What is the mean of this data set: 48, 51, 50, 47, 51, 49, 58, 57? 51.38
What is the mean of this data 44, 54, 58, 61, 66, 40, 51, 50? 53
Calculate the range of this set 48, 51, 50, 47, 51, 49, 58, 57. 11
Calculate the range pf this set 44, 54, 58, 61, 66, 40, 51, 50. 26
It is a measure of dispersion that is the square of standard deviation. What is it called? Variance
Calculate the standard deviation of this sample 48, 51, 50, 47, 51, 49, 58, 57. 4.03
Calculate the standard deviation of this population 1, 2, 5, 7, 8. 7.44
Created by: honeybunch
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