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Published byCollin Gavin Marsh Modified over 8 years ago
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MIDTERM REVIEW October 7 th 2009 20 multiple choice questions (Scantron) ** Make sure you bring a #2 Pencil ** And your OWN GRAPHING CALCULATOR!
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Important Topics FINDING MEAN FINDING STANDARD DEVIATION
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Important Topics Standard Deviation on the Calc STAT > Edit > Put in info in L 1 STAT > Calc > 1-Var Stats > Ent > Ent
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Important Topics Normal Distribution Bell-Shaped Curve MUST Know your %’s Remember 2.35% and 0.15%
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Important Topics Correlation vs Causation Just because 2 things have a strong correlation doesn’t always mean that 1 causes another Ex: Watching TV vs Grade in Class
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Important Topics Median-Median Line Steps 1) In order…Median of (x, y) in all 3 groups 2) Slope of 1 st and 3 rd groups…make equation 3) Use middle pt to find expected y 4) 1/3 (actual y – expected y) 5) Take answer from #4 and add to y-intercept
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Important Topics Graphing w/ calculator Use STAT Button List 1 = x…List 2 = y ZOOM Stat (9) Use Linear / Quadratic Regression Button Which model is it? LinearCubic QuadraticExponential
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Important Topics Vertex Form Intercept Form
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