Alice studies the relationship between climate and heart disease around the world. H(t) models the probability for the occurrence of heart disease (in percents relative to the global average)
at an area where the temperature ist degrees Celsius.
According to Alice's model, when the temperature is -5 C (which is the lowest temperature included in
the model), the probability is 10% above average. Then the probability decreases until the temperature
reaches 30°C (which is the highest temperature included in the model), where the probability is 20%
below average.

Part A: Which number type is more appropriate for the domain of H?

Choices:
A. Integers
B. Real Numbers

Part B: What is the appropriate domain?