Martha estimated there were 96 marbles in a jar for a contest. The actual number of marbles in the jar was 118. What was the percent error of Martha's estimation?
22%
81.36%
22.92%
18.64%
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OpenStudy (anonymous):
well first we wanna subtract the actual from the guess alright
OpenStudy (study312):
118 - 96 = ?
OpenStudy (study312):
mind if I help you out Migoz
OpenStudy (anonymous):
yeah @Study312 then after we do that take what you got and divide it by the number guess she made
OpenStudy (anonymous):
oh i mean help @Study312
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OpenStudy (study312):
that's wrong btw Migoz. you take the result of 118 and 96 then divide by the actual
OpenStudy (anonymous):
really ? oh i did say that wrong lol
OpenStudy (anonymous):
yeah that then multiply by 100 or 100%
OpenStudy (study312):
so 118 - 96 = 22
then 22 ÷ 118
OpenStudy (anonymous):
it will be the same thing so dont say i'm wrong @Study312 it's just gonna give the answer but it'll look exactly like it is supposed to
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OpenStudy (anonymous):
D
OpenStudy (study312):
actual - guess = x
x ÷ actual = y. Sry I guess I could have put it this way