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 **
It generates a list of times and how long the time between clicks was.
** Your TIMER data from 20 fast clicks **
1 .84375 .84375
2 .9921875 .1484375
3 1.15625 .1640625
4 1.304688 .1484375
5 1.484375 .1796875
6 1.65625 .171875
7 1.820313 .1640625
8 1.976563 .15625
9 2.132813 .15625
10 2.28125 .1484375
11 2.445313 .1640625
12 2.609375 .1640625
13 2.789063 .1796875
14 2.945313 .15625
15 3.117188 .171875
16 3.273438 .15625
17 3.453125 .1796875
18 3.617188 .1640625
19 3.78125 .1640625
20 3.953125 .171875
** Your average time interval for 20 time intervals **
0.19765625
I copied the numbers into Excel and averaged them.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
0.148438, 3
0.15625, 4
0.164063, 6
0.171875, 3
0.179688, 3
0.84375, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
It is flawed because it appears to only be accurate to four or five significant figures. It doesn't necessarily make it useless.
** What did you see when you looked at the differences between time successive time intervals? **
The numbers are 5 to 6 significant figures, and some numbers occur several times. This tells us that the program isn't accurate and seems to round off significant figures.
** Your time intervals for 7 complete breaths: **
4.398438
4.382813
4.945363
5
4.820313
4.25
4.492188
4.375
4.03125
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
Because we didn't click rapidly and the program had time to catch up.
** Do you think this program is accurate to .1 or .01 ... **
C.
It seems that the program rounds off significant figures after three digits.
** Copy of a few lines of your spreadsheet from the TIMER program. **
event number clock time time interval
1 9.664063 9.664063
2 14.0625 4.398438
3 18.44531 4.382813
4 23.39063 4.945313
5 28.39063 5
6 33.21094 4.820313
** **
About 15 minutes.
** **
&#Your work looks good. Let me know if you have any questions. &#