Here's a question for all mathemiticians. On my stats, I have 145 total questions answered. Of those answers, 139 are marked "other" with 95% majority. The other 6 are marked "best" with 4%. That is only 99%. What happened to the other 1%? I'm sure this is obvious and starring me in the face, but I need a little help.
2006-07-27 16:54:38 · 16 answers · asked by munkees81 6 in Science & Mathematics ➔ Mathematics
Yahoo has rounded incorrectly. They just truncate the percentage instead of rounding it properly.
139/145 = .95862... which should actually be rounded to 96%, not 95 %.
6/145 = .041379... which rounds to 4%.
If you round them properly, they will add up to 100%. Sometimes, even if you round properly, percentages don't add up to 100% exactly. This is called round off error.
2006-07-27 16:57:02 · answer #1 · answered by mathsmart 4 · 4⤊ 0⤋
It is rounding error. Yahoo takes as
139/145 = 0.958620.... = 95%
6/145 = 0.041379...... = 4%
Thus a total of 99%.
2006-07-28 02:28:26 · answer #2 · answered by DigitalManic 2 · 0⤊ 0⤋
That's what rounding off can do to totals... In this case, the rounding is incorrect.
139/145 = 0.9586206... --> 96%
6/145 = 0.0413793... --> 4%
2006-07-28 00:20:33 · answer #3 · answered by dutch_prof 4 · 0⤊ 0⤋
if u use a calculator and divide 139/145, ull get a long decimal. .9586206...
since ur rounding to the nearest percent, it would be round to 96% and 6/145 is .041379... and rounded to the nearest percent, it's 4%. 96% + 4% = 100% lol and im only 15
2006-07-28 00:00:37 · answer #4 · answered by abc 5 · 0⤊ 0⤋
We're all in about the same boat, Munkees. It's just the system Answers' computer uses to figure these things and it lops off the decimal places after 2 places. The actual # should be 96%, as it's really 95.862%. No kidding. Try it on your calculator!
2006-07-28 00:01:34 · answer #5 · answered by Steve 7 · 0⤊ 0⤋
The 95% and the 4% are probably rounded numbers.
2006-07-27 23:58:41 · answer #6 · answered by Ben W 1 · 0⤊ 0⤋
don't you have a calculator?
139/145 = 95.862%
6/145 = 4.138%
doesn't it total 100%?
2006-07-28 03:24:56 · answer #7 · answered by J 4 · 0⤊ 0⤋
The program that calculates the percentages does not round up.
Therefore, unless you are exactly a certain percentage, it will most likely appear to be off a percent.
2006-07-27 23:58:34 · answer #8 · answered by Steven B 6 · 0⤊ 0⤋
This is what is called a "rounding error". They rounded off the numbers and now they don't add up to exactly 100%.
2006-07-27 23:58:27 · answer #9 · answered by Diane D 5 · 0⤊ 0⤋
139/145 then % = 95.862068
6/145 %= 4.13793
adding them we get 99.99..
as 0.99....=1
as u have taken the round fig. , 1% is lost there
2006-07-28 03:05:59 · answer #10 · answered by sreenivas k 2 · 0⤊ 0⤋