The computer-science aptitude score x and the, Ask an Expert

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The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computer-science course. The results were as follows. (Give your answers correct to two decimal places.)

x	19	8	8	19	20	14	6	7	10	18
y	19	27	35	22	17	31	22	30	35	30

(a) Find the equation of the line of best fit.
y? =

(b) Find s_e².

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