[填空题]
The amount of dry matter in tomatoes, measured in grahsi 2n2f0lp-bq.6a t im.v)m /9.qpsayq2 yngm s, is the amount of solid content of the fruit, subtract the water content. The table below shows weigqma2g/ )9pnvqysy ..m hts of dry matter in 10 tomatoes grown in soil with different amounts of calcium, Ca, measured in $\mathrm{mg} / \mathrm{cm}^{3}$ .
1. 1. Find the Pearson's product moment correlation coefficient, r , for this data.≈
2. Comment on the strength of the r value found.
2. 1. Find the Spearman's rank correlation coefficient, $r_{s}$ , for this data.≈
2. Comment on the strength of the $r_{s}$ value found.
3. In the context of this question and the data provided, comment on if both correlation coefficients should be considered when determining the relationships between soil calcium content and dry matter weight, or if one should be used in favour of the other.
