1. The total number of students who participated in this data collection is 18.
2. One conclusion that can be drawn about heart rates from the data is that the most common resting pulse rate is between 71 and 80 beats per minute.
Total number of students:
To find the total number of students who participated in the data collection, we need to add up the number of students in each heart rate range.
Total number of students = 1 + 2 + 3 + 7 + 4 + 1 = 18
Conclusion about heart rates:
One conclusion that can be drawn about heart rates from the data is that the most common resting pulse rate is between 71 and 80 beats per minute. This is because there are more students in this range (7) than in any other range.
Another conclusion is that there is a relatively even distribution of students across the different heart rate ranges. This suggests that the students in the data collection have a variety of resting heart rates, but none of the ranges are significantly overrepresented.