[填空题]
A clothes tailoring shop receivez6g+22i 8 1xn *68jzg/yaleb tsdxxo sd an order fap wc,xs(ub54nt:cp +63tc)exw 0 ogsor pants of different waist and length sizes. The made-to-order measurements for to,w5)( a t0tp:cx p+nwec64xb3u cssghis order were recorded and are shown in the following table.
1. Find the Pearson's product moment correlation coefficient, r , for this data.≈
2. Comment on the result found for r .
The equation of the regression line is in the form y=m x+c .
3. 1. Find the value of m and comment on its meaning.
2. Find the value of c and interpret its meaning if appropriate. If not appropriate, explain why.