Think of two numerical questions (with decent ranges and of different topics), that you suspect correlate with each other, i.e. as one variable increases in value the other variable will change as well (either increase or decrease).

Calculate the median and interquartile range for the x-values and y-values.  Conclude about the consistency of your x and y data using the interquartile range (similar to the standard deviation, the smaller the interquartile range the more consistent the data).
Draw the scatterplot, and calculate the line of best fit and the correlation coefficient.  Make two predictions using the equation of the line of best fit.  

 

 

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Data Management Assignment For your scatterplot data from 30 people, hand in a scatterplot, and calculate the line of best using the formulas m= J = mx + h , h= y-" n 2.1/2 (.(.))" ("-())"2 r is a good indicator of closeness of it. Closer to Ithe better, closer to 0 fiurther away from line of best fit. and draw this line in the scatterplot. Show a predicted y-value from a hypothetical x-value for your data using this equation, and show a predicted x-value from a hypothetical y-value. Data Management Assignment For your scatterplot data from 30 people, hand in a scatterplot, and calculate the line of best using the formulas m= J = mx + h , h= y-" n 2.1/2 (.(.))" ("-())"2 r is a good indicator of closeness of it. Closer to Ithe better, closer to 0 fiurther away from line of best fit. and draw this line in the scatterplot. Show a predicted y-value from a hypothetical x-value for your data using this equation, and show a predicted x-value from a hypothetical y-value.