An environmental research group, using the fixed-alternative format, surveys people about their re-cycling practices in order to determine support for a ban on non-returnable bottles. The group does not reveal itself or its stance on the issue. The format of this questionnaire is best described as
A)structured-disguised.
B)unstructured-disguised.
C)structured-undisguised.
D)unstructured-undisguised.
E)unstructured-open ended.

A)structured-disguised.                      

Explanation:

Structured-disguised questionnaire: In scientific & psychological research, the term "structured-disguised questionnaire" is described as a questionnaire format in which the answers related to mentioned questions that are supposed to be asked from the participants are being resolute in advance. In this questionnaire, the questions are being asked by the participants involved in a particular study indirectly and therefore the participants are not able to understand the exact purpose of the given questions yet answers easily.

In the question above, the given format of the questionnaire is best described as structured-disguised.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !