Question: Based on some data, it is found that the average monthly price and standard deviation of FMCG (Fast Moving Consumer Goods) in Kolkata are Rs.

Based on some data, it is found that the average monthly price and standard deviation of

FMCG (Fast Moving Consumer Goods) in Kolkata are Rs. 60 and Rs. 2.5, respectively, and

the same in Mumbai are Rs. 80 and Rs. 3.5, respectively. The correlation coefficient between

the prices in the two cities is 0.9. If in a particular month the price of FMCG in Kolkata is Rs.

85, then the expected price at Mumbai in that month, obtained through linear regression, is

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