question form

math 163

Your 'question form' 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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I believe someones submission ended up in my portfolio. I copied it so you could see. You may know who it is by looking at it. I wasn't sure if they received a copy of not, so I wanted to let you know.

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timer program

Phy 121

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 **

A series of time and the intervals between them.

** #$&*Your TIMER data from 20 fast clicks **

1 122.75 122.75

2 122.9063 .15625

3 123.0625 .15625

4 123.2188 .15625

5 123.4063 .1875

6 123.5469 .140625

7 123.7344 .1875

8 123.9219 .1875

9 124.0781 .15625

10 124.2656 .1875

11 124.75 .484375

12 124.9219 .171875

13 125.0938 .171875

14 125.25 .15625

15 125.4688 .21875

16 125.7969 .328125

17 126.0313 .234375

18 126.4219 .390625

19 126.8125 .390625

20 127.3125 .5

** #$&*Your average time interval for 20 time intervals **

6.365625

I obtained this answer by adding all 20 time intervals together and dividing that answer by 20.

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

122.75 1

.15625 5

.1875 4

.140625 1

.484375 1

.171875 2

.21875 1

.328125 1

.234375 1

.390625 2

.5 1

** #$&*Your general comment to this point **

The first number seems to never be very close to zero.

** #$&*Why did you observe only certain time intervals? **

The program could be designed to round to certain numbers after so many decimal places. This could be to make it easier to compute a vast amount of intervals more effectually. While this makes it less accurate it is still a useful tool.

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

The numbers to the far right show whether the interval took more of less time than the last. The numbers are not exact to what the actual difference is. This shows the inaccuracy of the program.

** #$&*Your time intervals for 7 complete breaths: **

2.921875

3.34375

3.984375

4.1875

3.96875

3.671875

3.9375

4.09375

3.84375

3.78125

** #$&*Your general comment to this point: **

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

The fast click interfered with the program some how.

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

C.

More often than not when the numbers reached past the thousandths place the certain numbers would show up frequently.

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

Regular breaths

event number clock time time interval

1 2.921875 2.921875

2 6.265625 3.34375

3 10.25 3.984375

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30 minutes

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&#This looks very good. Let me know if you have any questions. &#

You submitted this document three times. No problem here; it was easy to delete the extras. Just letting you know the first time worked.

When in doubt, submit again. As I say, no problem for me to delete.

Thanks. I know whose this is. He or she probably didn't include an access code, so the program defaulted to the last valid code, which just happened to be yours.