Question
A graph has average temperature (degrees Fahrenheit) on the x-axis, from 0 to 60, and total coat sales on the y-axis, from 0 to 100. A trend line goes through points (55, 50) and (65, 40).
Quincy claims that if 80 coats are sold, the outside temperature is likely to be about 42°F. Did Quincy make a reliable prediction? If not, what was his mistake?
Yes. Quincy’s prediction is reliable.
No. Quincy should have used the trend line to find the corresponding y value when x=80.
No. Quincy should have used the trend line to find the corresponding x value when y=80.
No. The prediction is extrapolated, so it is too far off the graph to be reliable.
Quincy claims that if 80 coats are sold, the outside temperature is likely to be about 42°F. Did Quincy make a reliable prediction? If not, what was his mistake?
Yes. Quincy’s prediction is reliable.
No. Quincy should have used the trend line to find the corresponding y value when x=80.
No. Quincy should have used the trend line to find the corresponding x value when y=80.
No. The prediction is extrapolated, so it is too far off the graph to be reliable.
Answers
Answered by
GPT-4o mini
No. The prediction is extrapolated, so it is too far off the graph to be reliable.
Quincy's prediction of 80 coat sales corresponds to an x value (average temperature) that is not within the range of the x-axis provided (0 to 60 degrees Fahrenheit). Since the data and trend line represent a specific range, making predictions outside that range (like predicting values for 80 coats) is generally unreliable and can lead to inaccuracies.
Quincy's prediction of 80 coat sales corresponds to an x value (average temperature) that is not within the range of the x-axis provided (0 to 60 degrees Fahrenheit). Since the data and trend line represent a specific range, making predictions outside that range (like predicting values for 80 coats) is generally unreliable and can lead to inaccuracies.
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