STATS 32
Stanford University
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Examen
Standard Deviation exam prep
NuevoStandard deviation - correct answersIt indicates the difference between a group of values and their mean, taking all of the data into account. 
 
The standard deviation plays an important role in many tests of statistical significance. 
 
The larger the standard deviation, the more the values differ from the mean, and therefore the more widely they are spread out. 
 
How to compute standard deviation - correct answersa.Calculate the mean. 
 
b. Find the difference of each observations from the m...
Examen
Descriptive Statistics Exam prep & answers
PopularMatch the data characteristic to what it describes. 
 
Center: 
 
Variability: 
 
Shape: 
 
(symmetrical or skewed) 
 
(spread of data values or dispersion) 
 
(Typical or middle value; where the data values are concentrated) - correct answersCenter: Typical or middle value; where the data values are concentrated. 
 
Variability: spread of data values or dispersion. 
 
Shape: symmetrical or skewed. 
 
The best measure of central location when using an attribute data set is the ___. 
 
median. 
 ...