Question

The table below shows the average monthly rainfall in inches for Los Angeles, California. Which model best represents the data set?

Month	1	2	3	4	5	6	7	8	9	10	11	12
Rainfall	3.33	3.68	3.14	0.83	0.31	0.06	0.01	0.13	0.32	0.37	1.05	1.91

y=0.09x2−1.43x+5.51

y=−1.43x+5.51

y=0.01x2+1.43x+5.51

y=1.43x+5.51

Answer 1

This is done using matlab.

The best fit is for a=.09371 ,b=-1.434 and c=5.509 which is the coefficients of x^2 ,x and constant respectively.