The assets (in billions of dollars) of the four wealthiest people in a particular country are 33, 29, 23, 18. Assume that samples of size n=2 are randomly selected with replacement from this population of four values.
a. After identifying the 16 different possible samples and finding the mean of each sample, construct a table representing the sampling distribution of the sample mean. In the table, values of the sample mean that are the same have been combined.
x over bar 
Probability 
x over bar 
Probability 


33 
nothing 
25.5 
nothing 

31 
nothing 
23.5 
nothing 

29 
nothing 
23 
nothing 

28 
nothing 
20.5 
nothing 

26 
nothing 
18 
nothing 
(Type integers or fractions.)
Given the four wealthiest people in a particular country are 33, 29, 23, 18.
Sample size n=2
selected with replacement from this population of four values.
Samples  Mean  Samples  Mean 
33,29  31  29,33  31 
33,23  28  23,33  28 
33,18  25.5  18,33  25.5 
29,23  26  23,29  26 
29,18  23.5  18,29  23.5 
23,18  20.5  18,23  20.5 
33 ,33  33  23,23  23 
29,29  29  18,18  18 
NOW:
Probability  Probability  
33  1/16  25.5  2/16 
31  2/16  23.5  2/16 
29  1/16  23  1/16 
28  2/16  20.5  2/16 
26  2/16  18  1/16 
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