Chapter 18, Problem 28P

The following data define the sea-level concentration of dissolved oxygen for fresh water as a function of temperature:

T°,C	0	8	16	24	32	40
o, mg/L	14.621	11.843	9.870	8.418	7.305	6.413

Estimate $o\left(27\right)$ using

(a) Linear Interpolation,

(b) Newton's interpolating polynomial, and

(c) Cubic splines

Note that the exact result is 7.986 mg/L.