Suppose that these 10 measurements are respectively labled x1,x2...,x10( Thus, --86 is labeled x1, 45 is labeled x2, and so on.)

find Find

If x1=-81

Here difference is 45-(-86)=131

Hence add (131) to previous number

x1=-81

x2=45

x3=(45+131)=176

x4=176+131=307

x5=307+131=438

x6=438+131=569

x7=569+131=700

x8=700+131=831

x9=831+131=962

x10=962+131=1093

But if x1=86 & x2=45

Difference is 45-81=-46

Hence

x1= 86

x3=45+(-46)=-1

x4=-1-46=-47

x5=-47-46=-93

x6=-93-46=-139

x7=-139-46=-185

x8=-185-46=-231

x9=-231-46=-277

x10=-277-46=-323

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