What rules regarding class intervals must a researcher keep in mind when constructing a grouped frequency distribution?
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Q19: Extreme scores in a sample are called
A)modes.
B)intervals.
C)outliers.
D)deviations.
Q20: A researcher is studying patterns of marriage
Q21: Scores on a test range from 12
Q22: A distribution in which there are more
Q23: What does a z-score tell us?
A)Where a
Q25: Name and define the three measures of
Q26: Name and define the three measures of
Q27: Which measure of variability is most useful?
Q28: Distinguish between a frequency polygon and a
Q29: What is the difference between a positively
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