4. The graph shows hourly temperatures from 5 AM to 5 PM. What is the range of temperatures?
Answer: A
The range of temperatures is 20 °F.
The range of temperatures can be determined by finding the difference between the highest and lowest temperatures recorded on the graph. In this case, the highest temperature is 70 °F, and the lowest is 50 °F, resulting in a range of 20 °F.
A) 20 °F
This option correctly represents the range of temperatures calculated by subtracting the lowest recorded temperature (50 °F) from the highest (70 °F). The calculation shows that 70 °F - 50 °F equals 20 °F, which confirms this option as the right answer.
B) 25 °F
Option B is incorrect because the range of temperatures does not equal 25 °F. The difference between the highest and lowest temperatures is 20 °F, not 25 °F, indicating that this choice does not accurately reflect the data shown in the graph.
C) 30 °F
This option is also incorrect since the range between the highest and lowest temperatures is not 30 °F. The calculation clearly shows that the range is 20 °F, thus making this option an inaccurate representation of the temperature data.
D) 35 °F
Option D is incorrect as well. A range of 35 °F would imply a larger difference between the highest and lowest temperatures than what is provided in the graph. The correct calculation yields a range of only 20 °F, demonstrating that this option does not fit the temperature data.
Conclusion
In summary, the correct answer is 20 °F because it accurately reflects the calculated difference between the maximum and minimum temperatures. All other options misrepresent this calculation and do not align with the temperature data presented in the graph. Thus, 20 °F is clearly the definitive range of temperatures.