timer program

Your work on timer program has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

Your General Comment

Describe what you see on your first 10 clicks

ten numbers appeared

Your TIMER data from 20 fast clicks

1 210.5781 210.5781

2 210.7969 .21875

3 210.9844 .1875

4 211.1563 .171875

5 211.3281 .171875

6 211.5156 .1875

7 211.6719 .15625

8 211.8594 .1875

9 212 .140625

10 212.1875 .1875

11 212.3906 .203125

12 212.5781 .1875

13 212.7656 .1875

14 212.9375 .171875

15 213.0938 .15625

16 213.3125 .21875

17 213.6875 .375

18 213.8906 .203125

19 214.0938 .203125

20 214.2813 .1875

21 214.4688 .1875

22 214.6563 .1875

Your average time interval for 20 time intervals

.1956

I added all the numbers in the third column and divided by 20

Your frequency distribution for the 20 time intervals (interval, number of times it was observed)

.1875, 7

.1718, 3

.2031, 2

Your general comment to this point

Why did you observe only certain time intervals?

Probably because .1875 is as fast as the timer can go so if you exceed that speed it records your speed as .1875

What did you see when you looked at the differences between time successive time intervals?

There are a lot of repeating number indicating that the timer has some sort of bias for those numbers

Your time intervals for 7 complete breaths:

518

521.7656

526.4219

531.8594

536.4844

541.0625

546.25

Your general comment to this point:

Why did you rarely, if ever, observe that same time interval twice?

numbers are more widely varied

Do you think this program is accurate to .1 or .01 ...

a because a lot of numbers are identical after the decimal

Copy of a few lines of your spreadsheet from the TIMER program.

event number clock time time interval

1 518 518

2 521.7656 3.765625

3 526.4219 4.65625

4 531.8594 5.4375

5 536.4844 4.625

6 541.0625 4.578125

7 546.25 5.1875

8 550.4531 4.203125

9 554.1875 3.734375

10 557.5156 3.328125