A Military Radar Is Measuring the Distance to a Jet

question 10

Multiple Choice

A military radar is measuring the distance to a jet fighter.The radar has received the following measurements:
$$\begin{array} { l l l l l l l } \text { time } t \text { (minutes) } & 1 & 2 & 3 & 4 & 5 & 6 \\\text { distance (miles) } & 280 & 289 & 294 & 299 & 308 & 310\end{array}$$
Using a least squares fit to the data,extrapolate to the nearest tenth of a minute when the jet will be 345 miles away?

• A)10.4 minutes
• B)13.7 minutes
• C)12.9 minutes
• D)11.5 minutes

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Definitions:

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The level of challenge presented by a task, which can affect performance and engagement.

Attention

the act or state of applying the mind to something; the ability to closely and carefully listen, watch, or consider something or someone.

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The performance of a task with little or no conscious thought, often as a result of repeated practice and learning.

Controlled Processing

A detailed level of mental processing that requires focused attention and effort, typically used when a task is difficult or unfamiliar.