Asked by Andres Alvarez on Jun 04, 2024
Verified
When calculating the standard deviation,what must be done in order to obtain an unbiased estimate?
A) subtract 1 from X
B) add 1 to X
C) subtract 1 from n
D) add 1 to n
Unbiased Estimate
A conservative estimate of a population parameter.
Standard Deviation
A measure of the dispersion or variability of a set of data points, indicating how spread out the data are from their mean.
Subtract
The action or method of deducting one number or quantity from another.
- Ascertain and evaluate the standard deviation for a specific data collection.
Verified Answer
AH
abdul hassanJun 06, 2024
Final Answer :
C
Explanation :
When calculating the standard deviation, an unbiased estimate can be obtained by subtracting 1 from the sample size (n) used in the calculation of the variance. This is because the sample variance tends to underestimate the population variance. Subtracting 1 from n corrects for this bias and provides an unbiased estimate of the population variance, which can be used to calculate an unbiased estimate of the standard deviation.
Learning Objectives
- Ascertain and evaluate the standard deviation for a specific data collection.