Question

Fit a straight line to the following data using the method
of least square. Also estimate the sales for 1977.
Year:
1969 1970 1971 1972 1973 1974 1975 1976
38
40
65 72
72 69 60 87
87 95
Sales:
(in lakhs of Rs.)
3
QP.No.: BB 755​

Answer 1

Answer:

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