Which of the following is NOT considered as a property of a good estimator?
Correlation
A good estimator should have the properties of consistency (producing estimates that get closer to the true value as the sample size increases), unbiasedness (on average, the estimator should equal the true value), and efficiency (providing the smallest variance among all unbiased estimators). Correlation is not a property of a good estimator.
Similar Questions
The ______ is an unbiased estimator of the population mean.
If xi = i / 5 + 2, where i = 1, 2,..., 5, then the mean of x1, x2, ..., x5 is:
How many employees get salaries less than Rs 30,000?
Salary Data of Employees in a Company
The following data shows salaries of all the employees of a company:
Salary (in Rs.) / वेतन (रुपये में) 0 - 10,000 10,001 - 20,000 20,001 - 30,000 30,001 - 40,000 40,001 - 50,000 Number of Employees / कर्मचारियों की संख्या 235 105 50 40 20 Calculate the standard deviation if the mean of a certain set of observations is 20 and the mean of the squares of the same observations is 500.
Calculate the coefficient of range for the following set of data: 3, 6, 6, 8, 9 and 12.
If the mean of a certain set of data is 16 and variance is 4, then find the coefficient of variance.
If a set of points represent probability density, then the third central moment is the ___________.
What is the mean of a data if its Pearson's coefficient of skewness is 0.25, standard deviation is 6 and mode is 18?
Coefficient of Kurtosis β2 = ____________, where μ2 and μ4 are the second and fourth moments about mean.
Find regression coefficient of y on x (byx) if correlation coefficient between x and y values is 0.75 and standard deviation of x and y are 5 and 6.4 respectively.
Important Questions from Statistical estimation
The ______ is an unbiased estimator of the population mean.
If xi = i / 5 + 2, where i = 1, 2,..., 5, then the mean of x1, x2, ..., x5 is:
How many employees get salaries less than Rs 30,000?
Salary Data of Employees in a Company
The following data shows salaries of all the employees of a company:
Salary (in Rs.) / वेतन (रुपये में) 0 - 10,000 10,001 - 20,000 20,001 - 30,000 30,001 - 40,000 40,001 - 50,000 Number of Employees / कर्मचारियों की संख्या 235 105 50 40 20 Calculate the standard deviation if the mean of a certain set of observations is 20 and the mean of the squares of the same observations is 500.
Calculate the coefficient of range for the following set of data: 3, 6, 6, 8, 9 and 12.
