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نر Frequency distributions
The arithmetic mean
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analysis answer apply assumed average chance chapter coefficient column combined compared comparison components composite computed consider correction correlation corresponding criterion curve dependent derived determined difference distribution effect equal equation error estimate example expected factor FIGURE formula four frequencies given gives hypothesis illustrative independent indicates individuals interval kind larger less limits mean measurements median method normal observations obtained pairs percent percentage person population positive possible prediction probability problem procedure proportion Psychology question random range ranks ratio reason regression reject relation reliability represent respectively responses sample sample mean scale scores selection shows significant single smaller standard deviation standard error statistical step sum of squares Table tion true units validity values variables variance weights zero