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Jim’s heart rate was monitored during periods of exercise and periods of rest. The graph shows the result of one 50-minute test.

Which statement is an inference that can be made by using the graph?
Jim’s heart rate was 60 beats per minute at the start of the test.
Jim’s maximum heart rate during the test was 140 beats per minute.
Jim’s heart rate increased steadily as he continued exercising.
Jim’s heart rate decreased quickly after 30 minutes since he is in good shape.

Jims heart rate was monitored during periods of exercise and periods of rest The graph shows the result of one 50minute test Which statement is an inference tha class=

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bobeld
All of them are facts.  But the last one infers that because it decreased quickly after 30 minutes, he is in good shape.  He could have cancer and not be in good shape.  A rapid decrease in heart rate is not the sole indicator of being in good shape - so it is the one that involves and inference.

Answer:

D

Explanation:

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