Question

of the following scenarios contain biased samples? Select all that apply. a) To estimate which presidential candidate is likely to win the vote of a town, Mark c by interviewing people leaving a local Christian church. b) Kenneth wants to estimate the mean height of students at his school. He collects data by selecting a random group of students within his classroom. c) To estimate the male to female ra recording the sex of every 50th resident after selecting a random starting point on a list of residents. 7) Which ollects data tio of the residents of her city, Janice collects data by d) Andrea wants to estimate the mean salary of professors at her university. She collects data by recording the salaries of all professors included in 12 randomly selected departments. e) To estimate the mean number of classes that students take at his university, Raymond collec m a randomly selected proportionate number of students from each grade level. data fro

Answer 1

Correct options:

Scenario (a) and (b):

Explanation:
(a) Those who are not going to local Christian church are not represented in the sample.

(b) The students of other classrooms are not represented in the sample.

*c) Systematic Sampling method is used

(d) Cluster Sampling method is used.

(e) Stratified Sampling method is used.