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17. An enquiry into 50 families to study the relationship between
expenditure on accommodat...
Mathematics, 11.02.2021 14:00 jamesgraham577
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17. An enquiry into 50 families to study the relationship between
expenditure on accommodation, (Rs. X) and expenditure on food
Estimate the expenditure on food and entertainment when
and entertainment (Rs. Y) gave the following results.
EX = 8500, EY=9600,
Oy = 20, r= 0.6
expenditure on accommodation is Rs.200.
Ox = 60,
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