timer program

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 **

10 different sets of numbers

** Your TIMER data from 20 fast clicks **

1 53.89063 53.89063

2 54.05078 .1601563

3 54.16016 .109375

4 54.32813 .1679688

5 54.44141 .1132813

6 54.59766 .15625

7 54.75781 .1601563

8 54.92969 .171875

9 55.08984 .1601563

10 55.25781 .1679688

11 55.41797 .1601563

12 55.58984 .171875

13 55.69922 .109375

14 55.85938 .1601563

15 56.03125 .171875

16 56.19141 .1601563

17 56.30078 .109375

18 56.46875 .1679688

19 56.62891 .1601563

20 56.80078 .171875

** Your average time interval for 20 time intervals **

.14550784

There are only 19 fast-click intervals in your data so your average might be a little higher that that; otherwise fine.

I added all numbers together and then divided by 20

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

0.109375, 3

0.1132813, 1

0.15625, 1

0.1601563, 7

0.1679688, 3

0.171875, 4

** Your general comment to this point **

** Why did you observe only certain time intervals? **

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

the clock is only accurate up to a certain point. After this point it simply rounds the numbers, or rounds to the correct number of significant figures according to the acciracy of the clock.

** Your time intervals for 7 complete breaths: **

3.898438

5.050781

4.339844

5.160156

4.941406

5.277344

4.992188

4.926743

5.378906

** Your general comment to this point: **

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

because the accuracy increases with the longer time intervails. the reason being the fast clicks only leave so much time between while the longer breaths are more liekly to be registered at different numbers.

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

d. Because of the number of significant figures that were displayed on the readout for information.

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

Timer

event number clock time time interval

1 22.30078 22.30078

2 26.19922 3.898438

3 31.25 5.050781

4 35.58984 4.339844

** **

20 minutes

** **

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Very good work. Let me know if you have questions. &#