Why did Literary Digest predict the 1936 presidential election incorrectly?
a. Only a small number of ballots were actually returned.
b. The sample was badly biased for an election that divided the electorate strongly along economic lines.
c. The size of the sample was too big so that the margin of error in the poll was not precise.
d. The ballots were sent out from Kansas, where one of the contenders lived.
b. The sample was badly biased for an election that divided the electorate strongly along economic lines.
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The only mathematical property that nominal scales have is the property of
A) identity. B) equal intervals. C) magnitude. D) true zero.
_________: The risk associated with not being 100% confident that the difference is caused by what you think and may be due to some unforeseen factor
Fill in the blanks with correct word
What is the best code to use when coding gender?
a) male, female b) 1, 2 c) M, F d) Joe, Jane
A key characteristic of a written constitution is that it
A. is formally presented in one written document. B. was completed at the time of national independence. C. is ratified by all member states of the political system. D. is based upon democratic principles.