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| a graph with points plotted to show a possible relationship between first differences of a function |
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| a measure of the strength and direction of the relationship between two variables or data sets |
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| two data sets have a positive correlation if both sets of data value increase |
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| two data sets have a negative correlation if one set of data values increases as the other set decreases |
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| two data sets have no correlation if there is no relationship between the sets of values |
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| a line on a scatter plot that helps show the correlation between data sets more clearly |
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| a list of numbers that often form a pattern |
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| an element or number in the sequence |
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| a sequence whose successive terms differ bu the same non zero number(d) called the common difference |
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| in an arithmetic sequence, the non zero constant difference of any term and the previous term |
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