timer program

Your work on timer program 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

I see a list of numbers from 1 to 10, and beside that I see numbers that are all relatively close together numerically, and beside those numbers I see more numbers that I am assuming are the differences between each subsequenst number that is to the left.

Your TIMER data from 20 fast clicks

1 250.6797 250.6797

2 250.793 .1132813

3 250.9023 .109375

4 251.0117 .109375

5 251.1211 .109375

6 251.2305 .109375

7 251.3398 .109375

8 251.4531 .1132813

9 251.5625 .109375

10 251.6719 .109375

11 251.7813 .109375

12 251.9414 .1601563

13 252 .05859375

14 252.2695 .2695313

15 252.3823 .1132813

16 252.4922 .109375

17 252.6016 .109375

18 252.7617 .1601563

19 252.8711 .109375

20 252.9805 .109375

21 253.0898 .109375

Your average time interval for 20 time intervals

.1205078275

I got this average by adding all the numbers together and dividing by 20 because I was not sure how to do the easier way.

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

.109375, 13

.1132813, 3

.1601563, 2

.05859375, 1

.2695313, 1

Your general comment to this point

How in the world could I have gotten exactly .109375 thirteen times? That seems almost impossible to do.

Why did you observe only certain time intervals?

It's not useless, but it may not be of much help if the time intervals are that small. Maybe the timer will be more accurate for intervals that are farther apart. Like when using a stopwatch for a race horse or something like that.

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

All of the time intervals are either .03125, .01563, or .015625. Maybe the TIMER program cannot accurately measure very small intervals. Maybe it takes the computer some time to process the click of the mouse. Kind of like it takes the brain to process a nerve stimulation before there is a reaction from the body.

Your time intervals for 7 complete breaths:

3.519531

3.898438

4.011719

5.21875

4.058594

4.28125

3.628906

3.570313

3.019531

3.242188

Your general comment to this point:

You have four columns of numbers but when I ran the time program, I only had three columns of numbers. This is what I had on my time program after I completed the breathing exercise:

1 3895.313 3895.313

2 3898.832 3.519531

3 3902.73 3.898438

4 3906.742 4.011719

5 3911.961 5.21875

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

I did not observe the same interval twice, and I think that it is because the computer had time to process the click of the mouse. It is more accurate with larger time intervals.

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

I would say c) the TIMER program is capable of determining the time between two events accurately to within about .001 second. I think (c) because all of the times recorded went to three decimal places at the most. For example on the breathing exercises all of my answers went to the third decimal place at the most and never went any further:

1 3895.313

2 3898.832

3 3902.73

4 3906.742

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

1 6.152344 6.152344

2 6.539063 0.3867188

3 6.921875 0.3828125

4 7.191406 0.2695313

5 7.410156 0.21875

6 7.628906 0.21875