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Exam DA0-001 topic 1 question 136 discussion

Actual exam question from CompTIA's DA0-001
Question #: 136
Topic #: 1
[All DA0-001 Questions]

Which of the following best describes the law of large numbers?

  • A. As a sample size decreases, its standard deviation gets closer to the average of the whole population.
  • B. As a sample size grows, its mean gets closer to the average of the whole population.
  • C. As a sample size decreases, its mean gets closer to the average of the whole population.
  • D. When a sample size doubles, the sample is indicative of the whole population.
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Suggested Answer: B 🗳️
by Swift_and_Quick at April 17, 2024, 12:53 a.m.

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Swift_and_Quick
6 months, 3 weeks ago
B. As a sample size grows, its mean gets closer to the average of the whole population. The law of large numbers states that as the size of a sample increases, the sample mean (average) will tend to get closer to the population mean. This means that larger samples are more likely to provide a more accurate estimate of the population parameter, such as the mean. Therefore, option B best describes the law of large numbers.
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