Solved on Aug 17, 2023

Find the max error of a 2.5±0.5 kg2.5 \pm 0.5 \mathrm{~kg} newborn weight measurement. Calculate the percentage error.

STEP 1

Assumptions1. The weight of the new-born baby is measured to be .5 kg.5 \mathrm{~kg}, correct to the nearest 0.5 kg0.5 \mathrm{~kg}. . The maximum absolute error is half the unit of measurement.
3. The percentage error is calculated by dividing the absolute error by the measured value and multiplying by100.

STEP 2

First, we need to find the maximum absolute error of the measurement. This is half the unit of measurement.
Absoluteerror=Unitofmeasurement2Absolute\, error = \frac{Unit\, of\, measurement}{2}

STEP 3

Now, plug in the given value for the unit of measurement to calculate the absolute error.
Absoluteerror=0.5 kg2Absolute\, error = \frac{0.5 \mathrm{~kg}}{2}

STEP 4

Calculate the absolute error.
Absoluteerror=0. kg2=0.25 kgAbsolute\, error = \frac{0. \mathrm{~kg}}{2} =0.25 \mathrm{~kg}

STEP 5

Now that we have the absolute error, we can find the percentage error. This is calculated by dividing the absolute error by the measured value and multiplying by100.
Percentageerror=(AbsoluteerrorMeasuredvalue)×100%Percentage\, error = \left(\frac{Absolute\, error}{Measured\, value}\right) \times100\%

STEP 6

Plug in the values for the absolute error and the measured value to calculate the percentage error.
Percentageerror=(0.25 kg2.5 kg)×100%Percentage\, error = \left(\frac{0.25 \mathrm{~kg}}{2.5 \mathrm{~kg}}\right) \times100\%

STEP 7

Calculate the percentage error.
Percentageerror=(0.25 kg2.5 kg)×100%=10%Percentage\, error = \left(\frac{0.25 \mathrm{~kg}}{2.5 \mathrm{~kg}}\right) \times100\% =10\%(a) The maximum absolute error of the measurement is 0.25 kg0.25 \mathrm{~kg}.
(b) The percentage error of the measurement is 10%10\%.

Was this helpful?
banner

Start learning now

Download Studdy AI Tutor now. Learn with ease and get all help you need to be successful at school.

ContactInfluencer programPolicyTerms
TwitterInstagramFacebookTikTokDiscord