Question: A survey was designed to study how business operations vary according to their size. Companies were classified as small, medium, or large. Questionnaires were sent to 200 randomly selected businesses of each size. Because not all questionnaires in a survey of this type are returned, researchers decided to investigate the relationship between the response rate and the size of the business. The data are given in the following two-way table:
What percent of all small companies receiving questionnaires responded?
(a) 12.5%
(b) 20.8%
(c) 33.3%
(d) 50.8%
(e) 62.5%