X=5 y=1 this what i got when i worked it out on my paper. hope that helps.
12 is first one 7 is 2nd one 9 is the last one
Percent relative error is calculated by the formula: (experimental value - literature value/ experimental value) x 100%
Therefore, (6-7/7) x 100% = 14.3%
Your answer is in absolute value :)
X must be 4.
I uploaded the photo as an answer
