12.12 Quick review questions

A study on the bruising of apples (Doosti-Irani et al. 2016) purposefully hit apples with three different forces (200, 700 and 1200 mJ), in three different regions of the apple (lower; middle; upper).

The researchers then recorded the depth of the bruising (the response variable), to determine if it could be estimated from the recorded the surface temperature (the explanatory variable) at the bruise location (an extraneous variable).

1. Which one of the following could be used to graph the response variable?
   A bar chart A histogram A boxplot A scatterplot A side-by-side bar chart
2. Which one of the following could be used to graph the explanatory variable?
   A bar chart A histogram A boxplot A scatterplot A side-by-side bar chart
3. Which one of the following could be used to graph the relationship between the response and explanatory variables?
   A bar chart A histogram A boxplot A scatterplot A side-by-side bar chart
4. Which one of the following could be used to graph the relationship between the ‘surface temperature’ and ‘bruise location?’
   A bar chart A histogram A boxplot A scatterplot A side-by-side bar chart

References

Doosti-Irani O, Golzarian MR, Aghkhani MH, Sadrnia H, Doosti-Irani M. Development of multiple regression model to estimate the apple’s bruise depth using thermal maps. Postharvest Biology and Technology. Elsevier; 2016;116:75–9.

---

Peter K. Dunn, 2021: CC BY-NC-SA 4.0