When only a few items are left unanswered, replies can be made useful by all of the following techniques, EXCEPT
A) inferring the response from other answers on the form.
B) using the average response for the item of interest.
C) combining the "don't know" and "no response" categories.
D) using regression analysis to estimate the response.
E) All of the above are appropriate techniques.

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The Answer of When only a few items are left unanswered, replies can be made useful by all of the following techniques, EXCEPT
A) inferring the response from other answers on the form.
B) using the average response for the item of interest.
C) combining the "don't know" and "no response" categories.
D) using regression analysis to estimate the response.
E) All of the above are appropriate techniques.

When Only a Few Items Are Left Unanswered, Replies Can