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Study the following graph and answer the given question. The following bar graph shows annual exports (in crore) of a company during the period 2015 to 2019.
What is the average export (in crore) of the year 2016 and 2018?
30
70
90
60
30
Read the values directly from the bar graph for the respective years and find their arithmetic mean.
Exports in 2016 = 20 crore, Exports in 2018 = 40 crore
Average=2Export┬аin┬а2016+Export┬аin┬а2018тАЛ
Read the values directly from the bar graph for the respective years and find their arithmetic mean.
Confusing the years 2016 and 2018 with other years or taking the wrong values from the axis.
Identify values from the bar graph
From the given bar graph, the export in the year 2016 is 20 crore and the export in the year 2018 is 40 crore.
Export2016тАЛ=20,Export2018тАЛ=40
Apply average formula
Calculate the average export of the two years by summing their values and dividing by 2.
Average=220+40тАЛ
Compute final result
Sum the values to get 60 and divide by 2 to obtain the final average.
Average=260тАЛ=30
A is correct because the average of the exports in 2016 (20) and 2018 (40) is (20 + 40) / 2 = 30 crore.
Data interpretation questions frequently combine basic arithmetic operations like averages and percentages with graphical representations.
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