Question

Deandre is estimating the weight of his mountain bike. The actual weight of his mountain bike is 15.5kg . Deandre's estimate is 13kg .
Find the absolute error and the percent error of Deandre's estimate. If necessary, round your answers to the nearest tenth.

Answer 1

The actual weight of his mountain bike is 14.5 NOT 15.5 , sorry

Answer 2

Its okay.

Answer 3

Hmmm, I can't really seem to help. Is there a formula to mesure things without having comparisons or any other number?

Answer 4

nope nothing

Answer 5

they only give the question

Answer 6

Wait a second.

Answer 7

Absolute: 14.5 - 13 = 1.5 kg
Percentage: 1.5 / 14.5 = 3 / 29

Answer 8

Okay, so his bike actually weighs 14.5 kg and Dandre thought it weighed 13 kg. So he was 1.5 kg off. However he was 10.4% off. In order to find the percentage difference. Take 100 divide it by 14.5 and multiply by 1.5 to get your answer. Anyways he is 10.4% off.

Answer 9

Percentage = 3 / 29 = 10.344%

Answer 10

So as ColossalMagnitude said. The absolute number he was off by was 1.5 which you do by taking 14.5 - 13 = 1.5.

Answer 11

so percent error is 10.4

Answer 12

Good job, Ghostgate. I think you should get the medal because you explained it really well, even though I said the answer first.

Answer 13

and absolute error is 1.5

Answer 14

Thanks ColossalMagnitude! So the Percent error is 10.4% due to how you take 100 / 14.5 x 1.5(Since 1.5 is the difference) and you get 10.4%. The absolute error which is the difference between the two is 1.5. You get this by taking 14.5 - 13 = 1.5 since 1.5 is the amount of numbers inbetween the two numbers.

Answer 15

incorrect

Answer 16

percent error is not 10.4

Answer 17

says one of the digits are wrong

Answer 18

Oh wait its 10.3. I'm sorry. It was like 10.33 something so it would be 10.3% Sorry man. Can you redo it?

Answer 19

We said it was 10.3 slimjim -.- or atleast I did.

Answer 20

yea its fine i submitted again

Answer 21

Ranga, in percentages you don't have negatives and positive percentages.

Answer 22

yea sorry i thought it gets rounded to 10,4 like ghost said

Answer 23

Well it could of been 10.4 because the answer is like 10.3448___etc. So you would round to 10.345 to 10.35 to 10.4, but they didn't imply that.

Answer 24

nothing bad happened , Thanks both of you

Answer 25

Ghostgate: http://answers.yahoo.com/question/index?qid=20090104225530AAUfQrT

Answer 26

You're welcome! Have a G'day!

Answer 27

Ah... I stand corrected, thanks for pointing that out Ranga. I should give you a medal! No jk. I can't. :P

Answer 28

np.

Answer 29

If there's any other questions slimjim77. Feel free to ask by messaging one of us okay?

Answer 30

i will , thanks