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.
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Your General Comment
Describe what you see on your first 10 clicks
I see three columns of numbers. The first column has the number of times I have clicked the button, the second number shows how long the application has been opened, and the third number shows the amount of time since the last time I clicked the button.
Your TIMER data from 20 fast clicks
1 213.4531 213.4531
2 213.5625 .109375
3 213.6875 .125
4 213.8125 .125
5 213.9375 .125
6 214.0625 .125
7 214.1875 .125
8 214.4063 .21875
9 214.5313 .125
10 214.6563 .125
11 214.7813 .125
12 214.8906 .109375
13 215.0156 .125
14 215.125 .109375
15 215.2656 .140625
16 215.3906 .125
17 215.5469 .15625
18 215.6875 .140625
19 215.8125 .125
20 215.9219 .109375
21 216.0313 .109375
22 216.2813 .25
23 216.4219 .140625
24 216.5469 .125
25 216.6875 .140625
26 216.8438 .15625
Your average time interval for 20 time intervals
0.128
I added the first 20 numbers together and then divided by 20
Your frequency distribution for the 20 time intervals (interval, number of times it was observed)
.109, 5
.125, 11
.218, 1
.140, 2
.156, 1
Your general comment to this point
Why did you observe only certain time intervals?
This means that the timer counts by a certain interval rather than by 0.000001
What did you see when you looked at the differences between time successive time intervals?
the timer always ends with 0.00563, 0.00125, or 0.00625
Your time intervals for 7 complete breaths:
5.453125
6.46875
7.703125
7.296875
7.5
9.734375
10.8125
11.01563
12.64063
14.75
Your general comment to this point:
Why did you rarely, if ever, observe that same time interval twice?
We would expect this because with a larger time interval, the accuracy is in found in seconds and milliseconds rather than in hundredths of a seconds.
Do you think this program is accurate to .1 or .01 ...
I would choose answer choice b because the timer is able to report variables to 4 places before the decimal, but as we have just seen, these final few places before the decimal are not very accurate.
Copy of a few lines of your spreadsheet from the TIMER program.
test
event number clock time time interval
1 2525.422 2525.422
2 2530.875 5.453125
3 2537.344 6.46875
4 2545.047 7.703125
5 2552.344 7.296875
6 2559.844 7.5
7 2569.578 9.734375
8 2580.391 10.8125
9 2591.406 11.01563
10 2604.047 12.64063
11 2615.797 11.75
12 2630.547 14.75
1 hour because had trouble starting the timer file.
Very good work.