Chapter 4 MATH 1530 L10
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This 4 page Class Notes was uploaded by DeAnna Barbour on Wednesday September 28, 2016. The Class Notes belongs to MATH 1530 L10 at East Tennessee State University taught by Masum in Fall 2016. Since its upload, it has received 4 views. For similar materials see Prob/Stat Non-Calculus in Math at East Tennessee State University.
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Date Created: 09/28/16
X = Independent Variable Y = Dependent Variable EX: X = study hours = independent Y = grades = dependent variable Explanatory Variablindependent variable or X Response variableDependent variable or y !!!!ALWAYS QUANTITATIVE DATA!!!! If x increases, y increases If x increases, y decreases Scatter plot forms ; ● Linear ● Curve ● Scatter OUTLIERS!!! Correlations :r The closer the datas are the stronger the relationship The closer the datas are together the closer it is to +1 in a positive correlation r has no unit of measure! R only describe linear relationships nonresistant resistant mean median Standard deviation quartiles correlation y/x = slop⇝ change in y/change in x teacher made notes