The mean of the z score distribution must always equal 0.
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Q70: Under the normal curve, the further to
Q71: All percentiles above 50 must yield negative
Q72: When any frequency distribution curve is symmetrical,
Q73: A percentile of greater than 50 may
Q74: A positive z score always results when
Q76: The standard score is synonymous with the
Q77: The normal curve is mesokurtic.
Q78: A frequency distribution curve may be symmetrical
Q79: There are more cases which fall above
Q80: The normal distribution curve is unimodal.
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