A return-rate graph:
A)begins on the day the questionnaires were mailed.
B)begins on the day the first response is received.
C)begins on the day when at least ten responses are received.
D)begins on the day the second mailing is planned.
E)varies as to when it should begin depending on the nature of the project.

Question

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The Answer of A return-rate graph:
A)begins on the day the questionnaires were mailed.
B)begins on the day the first response is received.
C)begins on the day when at least ten responses are received.
D)begins on the day the second mailing is planned.
E)varies as to when it should begin depending on the nature of the project.

A Return-Rate Graph