Dependent Variables: Sales $1,2,3$

Independent Variables: Price, AD$,$ Shelf POS, Store Size

$1.$ Explain the reason we observe high correlations between S$1,$ S$2$ and S$3.$

$2.$ Why do we observe negative correlations between price and sales?

$3.$ AD and Shelf POS have low correlations with Sales. What is your explanation?

$4.$ AD GRP is highly correlated to AD$.$ Is it desirable? Why?

$5.$ Store Size and AD is highly correlated in negative direction. Is it desirable? Why?

$6.$ What is the correlations among Price, AD and POS are $0.$ Explain.