For the following data? (a) display the data in a scatter? plot, (b) calculate the correlation coefficient? r, and? (c) make a conclusion about the type of correlation.
The ages? (in years) of 6 children and the number of words in their vocabulary
Age, x Vocabulary size, y
1 150
2 650
3 1200
4 1700
5 2000
6 2600
?(b) The correlation coefficient r is ____.
?(Round to three decimal places as? needed.)