49.
Which of the following would provide an effective cool-down following a 30 minute run?

five minutes of sprints

10 minutes of walking

25 sit-ups

20 minutes of intense swimming
50.
Upon waking in the morning, Mary monitors her resting heart rate and records this information for nine days.

Day 1 65
Day 2 67
Day 3 72
Day 4 70
Day 5 68
Day 6 72
Day 7 70
Day 8 65
Day 9 66
What is the mean of her recorded heart rates?

65

67

68

70
51.
Upon waking in the morning, Terry monitors his resting heart rate and records this information for nine days.

Day 1 67
Day 2 67
Day 3 72
Day 4 70
Day 5 72
Day 6 69
Day 7 72
Day 8 75
Day 9 65
What is the median of his recorded heart rates?

65

67

69

70