To find the median low temperature from the given temperatures of the week, we first arrange the temperatures in ascending order:
-11°, -9°, -9°, -8°, -3°, 1°, 2°
Now, since there are 7 temperatures (an odd number), the median will be the middle value. The middle value in this ordered list is the 4th temperature.
Counting from the start:
- -11°
- -9°
- -9°
- -8° (this is the median)
- -3°
- 1°
- 2°
Therefore, the median low temperature is -8°.