If it is assumed that 62 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?  Answers:	A) 400	B) 420	C) 480	D) 483.8	E) 600
Minimum no of mail to be sent for getting 300 responses at 62%   = 300/0.62 = 483.8   Option 483.8
<result>D</result>
If it is assumed that 62 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?