33.5 Quick review questions

A study of onion growth (Mead 1970) produced the scatterplot shown in Fig. 33.5.

FIGURE 33.5: Onion yield plotted against planting density

1. The \(x\)-variable is
   Planting density Yield per plant It doesn’t matter

2. The form is best described as
   Linear Curved

3. The direction is best described as
   Negative Positive

4. The variation is best described as
   Small Large Strong