Question

30 POINTS PLEASE HELP

Calculate the percent error.

1. Jerri estimated that 30 people would attend the dinner event, but only 25 people attended.

2. Gene estimated the length of the fence to be 150 feet, but the actual measurement was 142.

Answer 1

1. There was 20% error.

2. There was 5.33% error.

Step-by-step explanation:

1. Jerri estimated that 30 people would attend the dinner event, but only 25 people attended.

Exact value = 25

Approx value = 30

Percent error = $\frac{|approx-exact|}{exact}*100$

Percent error = $\frac{|30-25|}{25}*100 = \frac{|5|}{25}*100$

Percent error = $\frac{500}{25} = 20\%$

There was 20% error.

2. Gene estimated the length of the fence to be 150 feet, but the actual measurement was 142.

Exact value = 142 feet

Approx value = 150 feet

Percent error = $\frac{|150-142|}{150}*100 = \frac{|8|}{150}*100$

Percent error = $\frac{800}{150} = 5.33\%$

There was 5.33% error.

Keywords: Error, percentage

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