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For most test takers, Data Insights is the most challenging section on the GMAT, with test takers scoring several points lower on average on DI than on Quant or Verbal and completing the section with less time to spare.
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03 Jun 2026, 11:22
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For individuals newly hired as data analysts, a number of organizations offer formal data-analysis training programs. Although individuals can work as data analysts without having completed such a program, the programs are purportedly effective in teaching sound data-analysis practices. Evidence for their effectiveness is provided by the following data: Whereas approximately one-third of employed data analysts have completed such a program, only eight percent of analysts whose work resulted in serious reporting errors have done so.
Which of the following, if true, most seriously weakens the conclusion drawn from the data above?
A. Employers generally offer higher salaries to data analysts who have completed a formal data-analysis training program.
B. Newly hired data analysts who are most likely to complete a training program are those who already have several years of experience working with data in related roles.
C. Although formal data-analysis training programs are offered by a number of different organizations, they are generally similar in both content and instructional approach.
D. Most serious reporting errors result from faulty data supplied to analysts rather than from mistakes made by the analysts themselves.
E. In terms of workload and average number of reports produced annually, data analysts who have completed a training program do not differ from those who have not.
Which of the following, if true, most seriously weakens the conclusion drawn from the data above?
A. Employers generally offer higher salaries to data analysts who have completed a formal data-analysis training program.
B. Newly hired data analysts who are most likely to complete a training program are those who already have several years of experience working with data in related roles.
C. Although formal data-analysis training programs are offered by a number of different organizations, they are generally similar in both content and instructional approach.
D. Most serious reporting errors result from faulty data supplied to analysts rather than from mistakes made by the analysts themselves.
E. In terms of workload and average number of reports produced annually, data analysts who have completed a training program do not differ from those who have not.
03 Jun 2026, 18:15
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For individuals newly hired as data analysts, a number of organizations offer formal data-analysis training programs. Although individuals can work as data analysts without having completed such a program, the programs are purportedly effective in teaching sound data-analysis practices. Evidence for their effectiveness is provided by the following data: Whereas approximately one-third of employed data analysts have completed such a program, only eight percent of analysts whose work resulted in serious reporting errors have done so.
Which of the following, if true, most seriously weakens the conclusion drawn from the data above?
The argument uses a lower error rate among trained analysts as evidence that the training programs are effective. The key weakness would be that trained analysts were already less likely to make errors before the training, so the lower error rate may not be caused by the program.
A. Employers generally offer higher salaries to data analysts who have completed a formal data-analysis training program.
This does not weaken the argument. Higher salaries do not explain why trained analysts are less represented among serious reporting errors.
B. Newly hired data analysts who are most likely to complete a training program are those who already have several years of experience working with data in related roles.
This is correct. If the people who complete the programs already tend to have relevant experience, then their lower error rate may be due to prior experience, not to the training program. That weakens the claim that the program itself teaches sound data-analysis practices effectively.
C. Although formal data-analysis training programs are offered by a number of different organizations, they are generally similar in both content and instructional approach.
This does not weaken the argument. Similar content and approach do not show that the programs are ineffective.
D. Most serious reporting errors result from faulty data supplied to analysts rather than from mistakes made by the analysts themselves.
This weakens somewhat, because serious reporting errors may not always reflect analysts’ skill. But it does not explain why trained analysts are much less represented among those errors as directly as B does.
E. In terms of workload and average number of reports produced annually, data analysts who have completed a training program do not differ from those who have not.
This removes a possible alternative explanation and therefore may strengthen the argument.
Answer: (B)
Which of the following, if true, most seriously weakens the conclusion drawn from the data above?
The argument uses a lower error rate among trained analysts as evidence that the training programs are effective. The key weakness would be that trained analysts were already less likely to make errors before the training, so the lower error rate may not be caused by the program.
A. Employers generally offer higher salaries to data analysts who have completed a formal data-analysis training program.
This does not weaken the argument. Higher salaries do not explain why trained analysts are less represented among serious reporting errors.
B. Newly hired data analysts who are most likely to complete a training program are those who already have several years of experience working with data in related roles.
This is correct. If the people who complete the programs already tend to have relevant experience, then their lower error rate may be due to prior experience, not to the training program. That weakens the claim that the program itself teaches sound data-analysis practices effectively.
C. Although formal data-analysis training programs are offered by a number of different organizations, they are generally similar in both content and instructional approach.
This does not weaken the argument. Similar content and approach do not show that the programs are ineffective.
D. Most serious reporting errors result from faulty data supplied to analysts rather than from mistakes made by the analysts themselves.
This weakens somewhat, because serious reporting errors may not always reflect analysts’ skill. But it does not explain why trained analysts are much less represented among those errors as directly as B does.
E. In terms of workload and average number of reports produced annually, data analysts who have completed a training program do not differ from those who have not.
This removes a possible alternative explanation and therefore may strengthen the argument.
Answer: (B)
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