The Standard Deviation of a Sample of 81 Observations Equals

question 25

Multiple Choice

The standard deviation of a sample of 81 observations equals 49. The variance of the sample equals

• A) 7.
• B) 9.
• C) 2401.
• D) 6561.

---

Definitions:

Positive Feedback

A process in which the effects of a small disturbance on a system include an increase in the magnitude of the perturbation.

Innate Talent

Natural abilities or proficiency in certain activities or fields present from birth or without the need for learning.

Secretly Hates

A condition where an individual harbors negative feelings or animosity towards someone or something, but does not openly express it.

Conclusion

The final part or summing up of an argument, research study, or discussion, often reflecting the results or the main points made.