Carlos is monitoring the temperature gauge in his sub-zero freezer every 15 minutes. The first hour, he observes a median temperature of 0°F (Fahrenheit) and a range in temperatures of 4.
Which of the following lists might provide the four temperatures that Carlos observed?

–2.6°, –1.2°, 1.4°, 1.2°


The median is the arithmetic mean of the two middle numbers. Given a median of 0 (zero), the two numbers must have the same absolute value, although either both are zero (0) or one is negative while the other is positive (for example, –1 and 1). Choices (1), (4), and (5) satisfy this requirement. But only choice D provides a range of 4 (the difference on the number line between the lowest and highest recorded temperatures: –2.6 and 1.4).

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