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No Cause & Effect Yes Cause & Effect Not enough Info What are the 3 things we're concerned with when dealing with scatterplots? Does there appear to be an outlier in this data? If so, what is the point where it is located? Does there appear to be an outlier for this data? outlier Yes/No location cluster around a bestfit line? What determines how closely a points in a scatterplot line of best fit correlation association correlation coefficient none of these scatterplot? The correlation coefficient is identified by "r" using the calculator. If r = 0, what does that tell you about the there is a positive relation there is a negative relation There is no relation There is a strong relation coefficient will fall into? What is the range of values that the correlation Hint: your answer must begin with "between __ and __" also, make sure the smallest number is listed 1st pair of variables below: positive, negative or zero. Describe a type correlation you might expect for each "Average hours spent watching TV per night and grade point average." pair of variables below: positive, negative or zero. Describe a type correlation you might expect for each "Speed of a car and distance traveled to a complete stop after brakes are applied." What is the correlation coefficient between the two variables x and y: positive, negative or zero? Find the correlation coefficient between the two variables x and y. Hint: round to 3 decimal places and include 0 before the decimal if it exists. r = Find the correlation coefficient between the two variables x and y. Hint: round to 3 decimal places and include 0 before the decimal if it exists. r = outlier Yes/No Is there an outlier is the data set provided? If so, name the point where the outlier is located. Hint: put ( , ) for the point, if it exists point What is the correlation coefficient between the two variables x and y: positive, negative or zero? |