Your 'timer program' report 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 **
A series of numbers labeled 1-10 each one appears to have a total time and the time since the button was last hit
** Your TIMER data from 20 fast clicks **
1 167.3594 167.3594
2 167.5117 .1523438
3 167.6836 .171875
4 167.8398 .15625
5 168.0117 .171875
6 168.1836 .171875
7 168.3281 .1445313
8 168.5 .171875
9 168.6563 .15625
10 168.8281 .171875
11 169.0117 .1835938
12 169.2031 .1914063
13 169.4063 .203125
14 169.5781 .171875
15 169.7813 .203125
16 169.9531 .171875
17 170.1563 .203125
18 170.3594 .203125
19 170.543 .1835938
20 170.7344 .1914063
** Your average time interval for 20 time intervals **
.175105
Added the numbers then divided by the total.
Good.
&#If you divide the difference between the 1st and 20th time clock times by the 20 - 1 = 19 time intervals you would get the average time interval, and this will agree with the average you obtained by adding the 19 intervals and dividing by 19.
More generally, if you take the difference between two clock times and the difference between their numberings, i.e., subtract the second-column numbers, subtract the first-column numbers and divide, you will get the average of the time intervals between those clock times. &#
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.1445313, 1
.1523438, 1
.15625, 2
.171875, 7
.1835938, 2
.1914063, 2
.203125, 4
** Your general comment to this point **
** Why did you observe only certain time intervals? **
It might not be quick enough to detect time intervals that small. And no its not flawed or useless.
** What did you see when you looked at the differences between time successive time intervals? **
It shows how much longer or shorter this time interval was than the last time interval was. There are only 3 different numbers .03125, .01563(which could be .015625 rounded up), and .015625. That it times in intervals of .015625 seconds(.03125/2=.015625).
** Your time intervals for 7 complete breaths: **
4.46875
5.917969
11.28516
10.48047
10.95313
10.11328
9.386719
10.73828
8.292969
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
because the time intervals were larger.
** Do you think this program is accurate to .1 or .01 ... **
b. The TIMER program is capable of determining the time between two events accurately to within about .01 second. Because the smallest time interval change was .015625
Excellent answer.
** Copy of a few lines of your spreadsheet from the TIMER program. **
3 , 212.8086 , 5.917969
4 , 224.0938 , 11.28516
5 , 234.5742 , 10.48047
6 , 245.5273 , 10.95313
7 , 255.6406 , 10.11328
8 , 265.0273 , 9.386719
9 , 275.7656 , 10.73828
10 , 284.0586 , 8.292969
** **
30 minutes
** **
&#Very good responses. Let me know if you have questions. &#