Mathematics: Graziano predicted that he would sell 420 tablecloths. he actually sold 520 tablecloths. what are the values of a and b in the table below? round the answer to the nearest tenth. percent error item approximate value exact value error absolute error ratio percent error tablecloths 420 520 a b

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Graziano predicted that he would sell 420 tablecloths.

Ответ:

esdoles3865

14.03.2022

Mathematics

a = 100, b=19.23%

Step-by-step explanation:

Given: The predicted value of tablecloths = 420

The actual value of tablecloths = 520

Now, the absolute error is given by :-

$\text{Absolute Error=|Actual Value - Predicted Value|}\\\\\Rightarrow\text{Absolute Error}=|520-420|=|100|=100$

∴ a = 100

The percent error is given by :-

$\text{Percent error}=\frac{\text{Absolute erroe}}{\text{Actual value}}\times100\\\\\Rightarrow\text{Percent error}=\frac{100}{520}\times100\\\\\Rightarrow]\text{Percent error}=19.23\%$

∴ b=19.23%

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Graziano predicted that he would sell 420 tablecloths. he actually sold 520 tablecloths. what are the values of a and b in the table below? round the answer to the nearest tenth. percent error item approximate value exact value error absolute error ratio percent error tablecloths 420 520 a b

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