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CompTIA Data+ Certification Exam Sample Questions (Q38-Q43):

NEW QUESTION # 38
What would be an example of an acceptable form of primary identification for the Data+ exam?

  • A. Credit card with photo and signature.
  • B. Employee ID card.
  • C. School ID card.
  • D. Passport.

Answer: D


NEW QUESTION # 39
Andy is a pricing analyst for a retailer. Using a hypothesis test, he wants to assess whether people who receive electronic coupons spend more on average.
What should Andy's null hypothesis be?

  • A. People who do not receive electronic coupons spend more on average.
  • B. People who receive electronic coupons spend more on average.
  • C. People who receive electronic coupons do not spend more on average.
  • D. People who receive electronic coupons spend less on average.

Answer: C

Explanation:
The null hypothesis presumes the status quo. Andy is testing whether or not people who receive an electronic coupon spend more on average, so, the null hypothesis states that people who receive the coupon do spend more on average.


NEW QUESTION # 40
According to the empirical rule, what percent of thee values in a sample fall within three standard deviations of the mean in a normal distribution?

  • A. 68%
  • B. 99.70%
  • C. 95%
  • D. 90%

Answer: B

Explanation:
According to the empirical rule, 68% of values are within one standard deviation, 95% are within two standard deviations, and 99.7% are within three standard deviations.


NEW QUESTION # 41
Kelly wants to get feedback on the final draft of a strategic report that has taken her six months to develop.
What can she do to get prevent confusion as see seeks feedback before publishing the report?
Choose the best answer.

  • A. Show the report to her immediate supervisor.
  • B. Use a watermark to identify the report as a draft.
  • C. Publish the report on an internally facing website.
  • D. Distribute the report to the appropriate stakeholders via email.

Answer: B

Explanation:
While Kelly needs feedback from the appropriate stakeholders, doing so without a watermark could lead them to believe the report they receive is the final product.


NEW QUESTION # 42
Which of the following would be used to store unstructured data from different sources?

  • A. A data warehouse
  • B. A database management system
  • C. A database
  • D. A data lake

Answer: D


NEW QUESTION # 43
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