Data Processing JAMB, WAEC, NECO AND NABTEB Official Past Questions

43

Which of the following is not a source of data collection.

  • A. observation
  • B. interview
  • C. questionnaire
  • D. classification
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44

The operation of checking input data against specified criteria is referred to as.

  • A. data verification
  • B. data validation
  • C. data cross check
  • D. data control
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45

Convert \(47_8\) to its binary equivalent.

  • A. 100111\(_2\)
  • B. 110011\(_2\)
  • C. 10001\(_2\)
  • D. 1111011\(_2\)
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46

Which of the following persons invented the punch card machine?

  • A. Blaise Pascal
  • B. Gottfried Leibniz
  • C. J. Prosper Eckert
  • D. Dr. Herman Hollerith
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