Question

Distinguishing Interpolated Data
A graph shows average temperature (degrees Fahrenheit) labeled 10 to 60 on the horizontal axis and total coat sales on the vertical axis. A line decreases from 10 to 65.

Which temperature values would an interpolation be limited to?

less than 3
between 3 and 60
between 20 and 80
greater than 55

Answer 1

Between 3 and 60.

Interpolation can only be done within the range of the recorded data, i.e., between the minimum and maximum temperatures shown on the graph.