David's bridal is conducting a survey of the trends in dress preferences among women who will marry sometime in the next 12 months. questionnaires were mailed to 100,000 women but only 1,000 responded resulting in a response rate of 1%. this study is threatened by

Non response error

Explanation:

Non response error - it is refer to that error of sampling when samples are not taken into consideration. In this case samples do not replied either they are not ready reply or do not want to reply.

In the given question also 1000 sample units is taken into consideration but only 1 % has respond which show that sample do not respond to the survey.

do all equestions have to be answered

answer; an active listener;