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Find the average crops produced by Theja.
612
574
656
738
None of the above
574
Use the deviation method: assume a mean of 600, calculate deviations (+150, +60, -350, -40, +50), sum them to -130, and divide by 5 to get -26. Then 600тИТ26=574.
The production by Theja is 750 (Wheat), 660 (Mustard), 250 (Rye), 560 (Oat), and 650 (Barley).
Average=nтИСxiтАЛтАЛ
Use the deviation method: assume a mean of 600, calculate deviations (+150, +60, -350, -40, +50), sum them to -130, and divide by 5 to get -26. Then 600тИТ26=574.
Students often miscalculate the sum of the five values or make errors in division by 5, leading to incorrect totals.
Summation of values
Add the production values for Theja: 750+660+250+560+650.
Sum=2870
Calculate average
Apply the average formula by dividing the sum by the total number of crops n=5.
Average=52870тАЛ
Final division
Performing the division yields the final average value.
Average=574
B is correct because the sum of the five crops produced by Theja is 2870, and dividing by 5 gives an average of 574.
This data interpretation skill is essential for 'Statistics' and 'DI' sections in exams like CAT, Bank PO, and SSC, where fast mental arithmetic of averages is a frequent requirement.
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