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Viefleur [7K]
3 years ago
14

Professor Winer sent a mail questionnaire to 2,000 subjects. Winer told subjects that their responses would be anonymous. After

the first mailing, 400 completed surveys were returned. For a second follow-up mailing, Winer should mail
a. 2,000 questionnaires.
b. 1,000 questionnaires.
c. 400 questionnaires.
d. 1,600 questionnaires.
e. 50 questionnaires.
Social Studies
1 answer:
anastassius [24]3 years ago
8 0

Answer:

a. 2,000 questionnaires.

Explanation:

Winer should mail 2,000 questionnaires because according to the first mailing he got 400 completed surveys so it would be wise of him to repeat the mailing of 2,000 questionnaires because there is a probability that the completed surveys will be up to or above 1,600 to complete the initial aim of 2,000 completed surveys.

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Stone polygons is the peri glacial landform feature results from the sorting of surface stones and soil particles into stripes or polygons.

The coordinates that make up a polygon region are determined by actual latitude and longitude values. A point (position) is the fundamental building block of a polygon, and you need at least three points to enclose a region in a polygon.

A peri glacial landform is a structure that is the product of strong frost, frequently in conjunction with perma frost. Periglacial landforms can only be found in regions with cold, essentially nonglacial conditions.

In the arctic and subarctic regions, rivers draining perma frost-covered basins release water and debr is into the sea, forming peri glacial-deltaic landscapes.

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