State two merits of questionnaire.

1.	State two merits of questionnaire.
Answer» 1. It is economical and covers large number of people spread over a large area. 2. It is time saving because a large extent of respondents can be reached through mailed questionnaire.

Answer»

1. It is economical and covers large number of people spread over a large area.

2. It is time saving because a large extent of respondents can be reached through mailed questionnaire.

Discussion