measures of Central Tendency

#1
The table below shows distribution of numbers of processed articles per day
per person and the rate of payment. Calculate the rate of payment per person
per article.
No. of Articles 80 - 99, 100 - 119 ,120-139 ,140 - 159, 160 - 179 .
Per Person Processed
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No. of Persons Processing. 12, 63 ,87, 56, 3 .

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Rate 3.1 ,3.2 ,3.3, 3.4, 3.5.
of Payment Per Article



Please show me the steps how to proceed
 
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