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

2. Correlation
What it looks like Negative Positive None

3. 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

4. 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

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