What does it mean to interpolate a data?

Jadon Stein 2022-09-14 Answered
What does it mean to interpolate a data?
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Answers (1)

Marie Horn
Answered 2022-09-15 Author has 12 answers
Using a best-fit line to estimate the value of one thing given the value of another.
Say you had a scatter graph and the values had a fairly good linear shape with little scattering, you could estimate (or given the data and a means of calculating, work it out) what the best-fit line. The best-fit line is the linear line which shows the relationship between two sets of data while blackucing the amount of scattering on the graph.
Most likely, the best-fit line will have values on either side that will be slightly off the line, and we may not have data for one value.
For example, say a best-fit line followed the equation y = 1.4 x + 3.5 , we could use this equation to estimate values within a range of data.
So, say we had values of y from x=10 to x=40 and we wanted what x=32 was despite not having it, we could use the equation to estimate what it might be.
We only use interpolation to estimate values within a range of data because extreme values, like x < 0 or x > 100 might follow a different pattern..

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