Question

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

Day 1 70
Day 2 72
Day 3 73
Day 4 67
Day 5 66
Day 6 71
Day 7 68
Day 8 65
Day 9 68

What is the mean of his recorded heart rates?

65

67

69

70
@frogs29

Answer 1

The mean is all observations added divided by the number of days.

Answer 2

I used a faster way to calculate the mean :-D

Answer 3

So all em all together and divide

Answer 4

Yeah, divide by 9

Answer 5

Well, not quite. That one was wrong

Just add them all and divide by 9.

The sum is 620.

Answer 6

620 divided by 9

Answer 7

Yeah.

Answer 8

65?

Answer 9

No, 69