Question 1133329:  Answer the following about the data set. (Round to two decimal places where appropriate)
 
Data set I: 
3	5	6	7	9
 
a) The median of Data set I is:  
  
b) The interquartile range (IQR) of Data set I is from _______ to ______ 
  
c) The mean of Data set I is:  
  
d) The standard deviation of Data set I is:  
  
 Answer by Boreal(15235)      (Show Source): 
You can  put this solution on YOUR website! Numbers are in order 
Median is the middle number or 6. 
The lower half consists of 3 and 5; the first quartile is the middle of it, or 4. 
The third quartile is therefore 89. 
Std. deviation requires mean first, which is sum/5 or 6 
squared deviations from mean, added, are 4+1+0+1+4 or 10 
divide by n-1 or 4 observations, and that is 2.5 
Take the square root, which is 1.58 
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