In a normal curve, what percentage is within 2 standard deviations of the mean?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Assessment in Counseling Test. Enhance your knowledge with engaging questions and detailed explanations. Ace your exam with confidence!

Multiple Choice

In a normal curve, what percentage is within 2 standard deviations of the mean?

Explanation:
In a normal distribution, data are spread around the mean in a predictable way, described by the empirical rule: about 68% lie within one standard deviation, about 95% lie within two standard deviations, and about 99.7% lie within three. So, within two standard deviations of the mean, roughly 95% of the data fall. The 68% option is the count within one standard deviation, not two. The 50% figure isn’t tied to the standard deviation in this context, and 99.5% would correspond to a wider range than two standard deviations.

In a normal distribution, data are spread around the mean in a predictable way, described by the empirical rule: about 68% lie within one standard deviation, about 95% lie within two standard deviations, and about 99.7% lie within three. So, within two standard deviations of the mean, roughly 95% of the data fall. The 68% option is the count within one standard deviation, not two. The 50% figure isn’t tied to the standard deviation in this context, and 99.5% would correspond to a wider range than two standard deviations.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy