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MissTica
3 years ago
10

A student estimates that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent err

or?
Mathematics
1 answer:
AnnyKZ [126]3 years ago
8 0

Answer: 66.7

Step-by-step explanation:

% error = error / actual value x 100

error = 5 -3

error = 2

Therefore :

% error = 2 /3 x 100

% error = 66.66666667

%error ≈ 66.7

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aksik [14]
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New mean: 32+10= 42.

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Difference: 336 - 160 = 176

I want to include 32, so that the new median stays in 32.

So the other two numbers must add 176 - 32 = 144

I will use a smaller number than 32 and the other greater (again in order to  keep the same median.

I will choose 28 and 144 - 28 = 116.

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Checking:

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3 years ago
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alex41 [277]
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I need the answer for n/3+5=7
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