Sixty years ago opinion polls often used the __________ method of sampling, which is now largely discredited.
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Q47: In a normal distribution approximately 68% of
Q48: "_= .5" expresses in symbols that the
Q49: The scores of the entire group of
Q50: A probability is a proportion. (True or
Q51: In a normal curve approximately _ percent
Q53: You conduct a survey by giving out
Q54: A(n)_ refers to the scores of the
Q55: A(n)_ refers to the larger group to
Q56: Probability is the _ relative frequency of
Q57: Today, survey sampling uses complex methods in
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