Asked Jan 7, 2020

onsider these sample data: x1 = 12, x2 = 8, x3 = 9, x4 = 17.

a. Find n.
b. Compute Σxi.
c. Determine x


Expert Answer

Step 1


There are 4 observations in the data. Thus, sample size or n is 4.


The summation is obtained as

Statistics homework question answer, step 1, image 1
Step 2

Thus, the Σ xi of the data is 46.


Statistics homework question answer, step 2, image 1

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