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Answer:
[tex]\bar x = 83.1875[/tex]
Step-by-step explanation:
Required
Determine the arithmetic mean
This is calculated as:
[tex]\bar x = \frac{\sum x}{n}[/tex]
So, we have:
[tex]\bar x = \frac{82 +95 +85 +80 +78 +82 +86 +96 +73 +68 +91+ 80+ 90+ 86 +72 +87}{16}[/tex]
[tex]\bar x = \frac{1331}{16}[/tex]
[tex]\bar x = 83.1875[/tex]