Difficulty: Hard

Average Score: 36%

Which statement is a valid conclusion from the data?

Diagram for question

Rationale

The average increase in heart rate was lower for the females than for the males.

The data indicates that, after 30 minutes of exercise, the increase in heart rate was less pronounced in female athletes compared to their male counterparts. This conclusion can be drawn from the observed measurements of heart rates during the exercise session.

A (The male athletes used more energy than the female athletes after 30 minutes of exercise.) YOUR ANSWER

This statement cannot be confirmed without specific data on energy expenditure for both groups. The question focuses on heart rate increases, and without energy usage data, any assertion regarding energy consumption remains speculative.

B (Strenuous exercise is more difficult for male athletes than female athletes.) YOUR ANSWER

This conclusion cannot be drawn from the heart rate data provided. Difficulty in exercise is subjective and cannot be accurately assessed through heart rate measurements alone, as it may vary based on individual fitness levels and other factors.

D (All the females had a lower heart rate than the males after 30 minutes of exercise.) YOUR ANSWER

While the average increase in heart rate was lower for females, this statement incorrectly generalizes that every female athlete had a lower heart rate. Individual responses can vary, and this claim does not account for outliers or differences among individuals within each group.

Conclusion

The data supports the conclusion that the average increase in heart rate was lower for female athletes compared to male athletes after 30 minutes of exercise. This highlights a specific physiological response during exercise, while the other options either lack sufficient evidence or misinterpret the data presented. Understanding these differences is crucial for tailoring training and recovery strategies for athletes of different genders.

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