Answer to Question #219048 in Statistics and Probability for stan

Question

An investigator decided to conduct a research to describe the average number of females in each family. Considering the case of  families in the town. Describe what may contribute to the difference between the value of the sample statistics and its corresponding population parameter. 

Answer 1

(i) While collecting data, only a finite set of families' data will be collected, hence this fitness in the datasample, leads to difference between population mean and sample mean.

(ii) Due to variability of number of females from one to another family also leads to this difference.