Question

In point estimation a. data from the sample is used to estimate the population parameter. b. the mean of the population equals the mean of the sample.

Answer 1

a. data from the sample is used to estimate the population parameter.

Explanation:

Given

Point estimation

Required

The true statement

Point estimation literally means taking data from the sample to estimate the corresponding population parameter

For instance:

Sample mean estimates population mean

Sample standard deviation estimates population standard deviation

Sample variance estimates population variance

Hence;

(a) is correct