Based on 10,500 responses from 34,000 questionnaires sent to all its members, a major medical association estimated that the annual salary of its members was $94,500 per year. what sampling technique was used?
a) random
b) cluster
c) stratified
d) convenience
e) systematic

d) Convenience

Step-by-step explanation:

According to my research on different types of sampling techniques, I can say that based on the information provided within the question the sampling technique used in this method is called a Convenience technique. This technique collects data from all the participants that were conveniently available to participate, and does not have any criteria that needs to be met. In this situation they used the data from all the participants that responded to the questionnaires, in other words the participants that were conveniently available,

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ou would have 12 of each