Do the sample variances target the value of the population variance? In general, do sample variances make good estimators of p
opulation variances? Why or why not? A. The sample variances do not target the population variance, therefore, sample variances do not make good estimators of population variances. B. The sample variances do not target the population variance, therefore, sample variances make good estimators of population variances. C. The sample variances target the population variances, therefore, sample variances make good estimators of population variances. D. The sample variances target the population variance, therefore, sample variances do not make good estimators of population variances.
Step-by-step explanation: The samples chosen in surveys are often representative when taking the whole population in consideration. They <u>have to be chosen in a random way so they are representative and there's no bias playing a role in the results</u>. Therefore, the variance calculated on the samples are good estimations of the population variancies, since they represent the population in the best way possible.
