Notation Twenty different statistics students are randomly selected. For each of them, their body temperature (°C) is measured and their head circumference (cm) is measured. a. For this sample of...

Notation Twenty different statistics students are randomly selected. For each of them, their body temperature (°C) is measured and their head circumference (cm) is measured.

a. For this sample of paired data, what does r represent, and what does p represent?

b. Without doing any research or calculations, estimate the value of r.

c. Does r change if the body temperatures are converted to Fahrenheit degrees?