During a Science Lab, Students Heated Water, Allowed It to Cool

question 71

Essay

During a science lab, students heated water, allowed it to cool, and recorded the temperature over time. They computed the
difference between the water temperature and the room temperature. The results are in the table. $$\begin{array} { | l | l | l | l | l | l | l | } \hline \text { Time (in minutes) } & 10 & 20 & 30 & 40 & 50 & 60 \\\hline \text { Difference in temp. (degrees F) } & 68 & 36 & 20 & 10 & 6 & 4 \\\hline\end{array}$$
-Write the equation of the least-squares regression line for the transformed data. Draw the
regression line on the scatterplot in question 2.

---

Definitions:

Resting Heart Rate

The number of heartbeats per minute while at rest, which is an indicator of aerobic fitness and overall heart health.

ACSM Frequency Recommendation

Guidelines set by the American College of Sports Medicine regarding the recommended frequency of exercise for maintaining or improving health.

Moderate-intensity Exercise

Physical activities that elevate the heart rate and breathing but still allow for conversation; includes activities like brisk walking, moderate cycling, or water aerobics.

Asthma

A chronic respiratory condition marked by episodes of airway constriction, causing wheezing, shortness of breath, chest tightness, and coughing.