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CompTIA DataAI COMPTIA-DATAAI

100 real CompTIA COMPTIA-DATAAI questions with answers checked by certified engineers. Start free, upgrade when you are ready.

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Questions
100
Exam code
COMPTIA-DATAAI
Last updated
Sep 27, 2026
Language
English
Certification
CompTIA DataAI
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COMPTIA-DATAAI sample questions

2 questions from the COMPTIA-DATAAI practice set, with the answer and explanation.

  1. Question 1
    A dataset of household incomes is strongly right-skewed because a few very high earners pull the average upward. Which measure of central tendency is least affected by those extreme values?
    • A.
      Median
    • B.
      Arithmetic mean
    • C.
      Range
    • D.
      Standard deviation
    Show answer

    Correct answer:

    • A.
      Median

    Explanation

    The median is the middle value after sorting, so the size of the largest incomes does not move it much. The arithmetic mean is pulled toward the outliers, which makes it the most tempting wrong answer for a skewed income column. The range and standard deviation describe spread, not the center of the data.
  2. Question 2
    Population variance is computed as the average of the squared deviations from the mean.
    • A.
      True
    • B.
      False
    Show answer

    Correct answer:

    • A.
      True

    Explanation

    For a full population of N values, the variance divides the sum of squared deviations from the mean by N. Sample variance divides by n minus 1 to correct for bias, which is a separate formula. The statement describes the population case correctly.
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FAQ

COMPTIA-DATAAI FAQ

What is the CompTIA COMPTIA-DATAAI exam?

COMPTIA-DATAAI is the CompTIA DataAI exam. The exam runs for 165 minutes.

How many questions are in the COMPTIA-DATAAI practice set?

The full COMPTIA-DATAAI practice set has 100 questions with answers.

Can I try COMPTIA-DATAAI practice questions for free?

Yes. This page has 2 free COMPTIA-DATAAI PDF files shared by other candidates, and a free online test engine where you can answer COMPTIA-DATAAI questions in your browser. No account is needed.

What formats are the COMPTIA-DATAAI practice questions available in?

COMPTIA-DATAAI practice questions are available in these formats: PDF and Online Practice Exam. You can also get them together in a bundle.

How much does COMPTIA-DATAAI practice material cost?

COMPTIA-DATAAI practice material starts from $59 USD.

Are these the actual COMPTIA-DATAAI exam questions?

No. They are exam-style practice questions written from the official COMPTIA-DATAAI exam objectives, not actual exam content.

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