Measures of central tendency and dispersion Flashcards
1
Q
What is central tendency?
A
A number that tells us where the middle of distribution is located.
2
Q
What are the three ways to measure central tendency?
A
Mean, median and mode
3
Q
What order are the measurements on a normal distribution graph?
A
In the same place
4
Q
What order are the measurements in a positively skewed distribution?
A
Mode, median ,mean
5
Q
What order are the measurements in a negatively skewed distribution?
A
Mean, median, mode
6
Q
What is dispersion?
A
Tells us how spread out the distribution is.
7
Q
Two ways to measure dispersion
A
Range and standard deviation
8
Q
What is standard deviation?
A
Measures the average distance of the data from the mean of the distribution.
