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Free DA0-001 Exam Braindumps

Which of the following data cleansing issues will be fixed when a DISTINCT function is applied?

  1. Missing data
  2. Duplicate data
  3. Redundant data
  4. Invalid data

Answer(s): B



A county in Illinois is conducting a survey to determine the mean annual income per household. The county is 427sq mi (2.65q km). Which of the following sampling methods would MOST likely result in a representative sample?

  1. A stratified phone survey of 100 people that is conducted between 2:00 p.m. and 3:00 p.m.
  2. A systematic survey that is sent to 100 single-family homes in the county
  3. Surveys sent to ten randomly selected homes within 5mi (8km) of the county’s office
  4. Surveys sent to 100 randomly selected homes that are reflective of the population

Answer(s): D



Which of the following statistical methods requires two or more categorical variables?

  1. Simple linear regression
  2. Chi-squared test
  3. Z-test
  4. Two-sample t-test

Answer(s): B



Which of the following data manipulation techniques is an example of a logical function?

  1. WHERE
  2. AGGREGATE
  3. BOOLEAN
  4. IF

Answer(s): D






Post your Comments and Discuss CompTIA DA0-001 exam with other Community members:

Sam commented on December 25, 2024
Are these real questions? They seem too easy to be true
UNITED STATES
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dd commented on July 04, 2023
will try this and comment again with the results
UNITED STATES
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