The accompanying table shows the ages (in years) of 11 children and the numbers of words in their v…

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The accompanying table shows the ages (in years) of 11 children and the numbers of words in their vocabulary. Complete parts (a) through (d) below. Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient. (a) Display the data in a scatter plot. Choose the correct graph below. Data Table Age (x) 1 2 3 4 5 6 3 5 2 4 6 Vocabulary size (y) 3 240 580 1200 2200 2700 630 2300 270 1300 2600 3000 2400 1800 1200 600 0 02468 Age (years) Is Q Vocabulary 2 0 1500 3000 Age (years) (b) Calculate the sample correlation coefficient r. r = (Round to three decimal places as needed.) Print Done

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  1. Jack Williams
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