Investigation 4 Students will be able to identify correlations in data and calculate and interpret standard deviation.

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Investigation 4 Students will be able to identify correlations in data and calculate and interpret standard deviation

Correlation What it looks like Negative Positive None

Correlation Coefficients and Outliers Outlier – data that does not fit the rest, usually not used Correlation Coefficient – statistical measure of the strength of the linear relationship between 2 variables, between -1 and 1 Exactly -1 – perfect downhill slope y=-x -.7 strong downhill slope -.5 moderate -.3 weak 0 no correlation +3 weak up +.5 moderate up +.7 strong up 1 perfect up

Standard Deviation Problem 4.4 What is mean, median, and modeThis will take you through the calculation of Standard deviation Break down what the steps are. Sum up the steps How to interpret standard deviation in relationship of a bell curve

Homework Standard deviation word problems Pg 97 1,3,6,10 and 11