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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.
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. - X Data Table A. O B. 3000- 2400- Age, x Vocabulary size, y 1800- Vocabulary size Vocabulary size 1200- 600- 210 610 0 2 4 6 1500 30 Age (years) 1200 Age (years) 2100 (b) Calculate the sample correlation coefficient r. 2600 O A N O W O U A W N 720 r= 2200 (Round to three decimal places as needed.) 240 1400 2400 Print Done
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