If it is assumed that 65 percent of those who receive a questionnaire by mail will respond and 300 responses are needed, what is the minimum number of questionnaires that should be mailed? Choose the most appropriate option:  A) 400  B) 420  C) 461.5  D) 500  E) 600
Minimum no of mail to be sent for getting 300 responses at 65%   = 300/0.65 = 461.5   Option 461.5
<result>C</result>
If it is assumed that 65 percent of those who receive a questionnaire by mail will respond and 300 responses are needed, what is the minimum number of questionnaires that should be mailed?