Respuesta :
How much was she wrong by over the total students. then divide to make the denomentator 100 and the (new) numerator is your answer
For this case we have that the equation to determine the percentage of error is given by:
[tex]E = \frac {| estimated - current |} {current} * 100[/tex]
Therefore, replacing values we have:
[tex]E = \frac {| 315 - 350 |} {350} * 100\\E = \frac {35} {350} * 100\\E = 10[/tex]
Answer:
the percent error of his estimate was:
[tex]E = 10[/tex]%