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# 09 - ← ← proportion between z =.47 and z = 2.05 ←...

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Statstics 20/09/2007 08:59:00 Z = (Observed score – Mean) / standard deviation Proportion below z = proportion leess than z = area to left of z = area from table Proportion with z less than 1.88 = .97 = 97% Proportion above z = proportion more than z = area to the right of z = 1 – area  from table proportion with z more than -1.23 1 – .11 = .89 = 89% proportion between two z-scores = difference between two areas from table

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Unformatted text preview: ← ← proportion between z = -.47 and z = 2.05 ← =.98 – .32 = .66 = .66% ← ← Statistics 20/09/2007 08:59:00 ← Frequency Curves • Proportion = area under curve ← ← Measurement Variables • Continuous o Every fraction is a possible value o The percentage of observations at exactly a given value is zero 20/09/2007 08:59:00 ←...
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