Question : Study the given bar graph carefully and answer the following question.
What is the difference between the average demand and the average production of the three companies taken together?
Option 1: 1,275
Option 2: 1,530
Option 3: 1,850
Option 4: 1,456
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Correct Answer: 1,456
Solution :
The demand of P, Q, and R companies is $(3800 + 4532 + 5318) = 13650$
Production of P, Q, and R companies is $(3620 + 2829 + 2833) = 9282$
Average = $\frac{\text{Sum of all the observations}}{{\text{Total number of observations}}}$
The average demand of all companies is $\frac{13650}{3} = 4,550$
The average production of all companies is $\frac{9282}{3} = 3,094$
The difference between average demand and average production is $4550 – 3094 = 1,456$
Hence, the correct answer is 1,456.
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