WILL GIVE MEDAL! Match each actual value with the predicted value that results in a thirty−five percent error.

Actual: two hundred
Actual: one hundred eighty
Actual: one hundred sixty
Actual: two hundred twenty

A) Predicted: two hundred forty−three
B) Predicted: two hundred sixteen
C) Predicted: two hundred seventy
D) Predicted: one hundred forty−three

Question

WILL GIVE MEDAL! Match each actual value with the predicted value that results in a thirty−five percent error.

Actual: two hundred               
Actual: one hundred eighty
Actual: one hundred sixty
Actual: two hundred twenty

A) Predicted: two hundred forty−three
B) Predicted: two hundred sixteen
C) Predicted: two hundred seventy
D) Predicted: one hundred forty−three

anonymous · Answer

@greenlegodude57

anonymous · Answer

@ganeshie8

ganeshie8 · Answer

(actual - predicted)/(actual)  =  0.3

anonymous · Answer

?

ganeshie8 · Answer

or,

(actual - predicted)/(actual)  =  -0.3

ganeshie8 · Answer

oh wait a sec,
the error percent is 35 so, the predicted can be :-

solving both gives u :-

predicted = 0.65(actual)

or

predicted = 1.35(actual)

ganeshie8 · Answer

lets take :=

Actual: two hundred

ganeshie8 · Answer

predicted can be :-

0.65(200) = 130

or

1.35(200) = 270

ganeshie8 · Answer

since u have 270 on the other side, pick that one for Actual: two hundred

ganeshie8 · Answer

Actual: two hundred              (C)    
Actual: one hundred eighty
Actual: one hundred sixty
Actual: two hundred twenty

ganeshie8 · Answer

see if u can figure out remaining same way ?

anonymous · Answer

But how do you get decimals?

ganeshie8 · Answer

wat decimals ?

anonymous · Answer

You did this above: 1.35(200) = 270

anonymous · Answer

How did you get the 1.35?

ganeshie8 · Answer

good question :)
we're given that the error is 35% right ?

ganeshie8 · Answer

so, the predicted value will be either :
(100+35)% or  (100-35)%  

of the actual value

ganeshie8 · Answer

that gives u

135%   or 65 %

ganeshie8 · Answer

which is same as 

1.35   or   0.65

anonymous · Answer

Ok.

ganeshie8 · Answer

see if u can match the table

anonymous · Answer

Wait, so we add one of the actual  value with 0.35?

ganeshie8 · Answer

yup!

or subtract 35%

anonymous · Answer

The actual 200 is the predicted 270.

anonymous · Answer

The actual 180 is the predicted 243.

ganeshie8 · Answer

yup !  

270 =  200 + 35% of 200

anonymous · Answer

The actual 160 is the predicted 216.

ganeshie8 · Answer

You got it !!!!

anonymous · Answer

And the actual 220 is the predicted 143. We had to subtract there.

anonymous · Answer

Wow. Thanks so much @ganeshie8 !

ganeshie8 · Answer

exactly ! good job :)

anonymous · Answer

Have a good medal! :)

ganeshie8 · Answer

u deserve it :D

anonymous · Answer

No, you do!