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 gives a list of times. The first a list of total time and the second a list of time from the last click.
** Your TIMER data from 20 fast clicks **
11 10.82422 .2070313
12 11.03516 .2109375
13 11.26563 .2304688
14 11.47656 .2109375
15 11.70703 .2304688
16 11.9375 .2304688
17 12.1875 .25
18 12.39844 .2109375
19 12.60938 .2109375
20 12.80859 .1992188
21 13.03125 .2226563
22 13.23828 .2070313
23 13.41016 .171875
24 13.62891 .21875
25 13.87891 .25
26 14.21094 .3320313
27 14.46094 .25
28 14.72266 .2617188
29 15.0625 .3398438
30 15.3125 .25
31 15.54297 .2304688
32 15.75391 .2109375
33 16.03516 .28125
34 16.49609 .4609375
35 16.91406 .4179688
** Your average time interval for 20 time intervals **
.215635985
&#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. &#
I added all 20 values and divided the sum by 20.
** Your frequency distribution for the 20 time intervals (interval, number of times it was observed) **
.171875, 1
.1992188, 1
.2070313, 2
.2109375, 4
.21875, 1
.2226563, 1
.2304688, 3
.25, 4
.2617188, 1
.3320313, 1
.3398438, 1
** Your general comment to this point **
** Why did you observe only certain time intervals? **
Its not necessarily flawed or useless its just not sensitive enough to record such times.
** What did you see when you looked at the differences between time successive time intervals? **
There are five negative and five positive values and the values are often repeated. But I'm not sure what this says about the program.
** Your time intervals for 7 complete breaths: **
860.24
5.097656
6.226563
5.5
5.675781
6.089844
6.101563
6.097656
6.5
5.324219
** Your general comment to this point: **
** Why did you rarely, if ever, observe that same time interval twice? **
We would expect it to happen because the time intervals are much longer so we are dealing with whole seconds instead of just fractions of seconds.
** Do you think this program is accurate to .1 or .01 ... **
a
Looking at the times it gives the one with the least number of values is to the hundredths so I feel it is safe to say that it is accurate to the hundredths.
** Copy of a few lines of your spreadsheet from the TIMER program. **
event number clock time time interval
1 1860.246 1860.246
2 1865.344 5.097656
3 1871.57 6.226563
4 1877.07 5.5
** **
40 min
** **
&#Good work. See my notes and let me know if you have questions. &#