The following data represent the demand (Y) of an item at a local shop and their price (X).
Use the data to determine:
a) the coefficient of correlation between demand for the item and price,
b) the proportion of the variation in demand accounted for by price.

Question

The following data represent the demand (Y) of an item at a local shop and their price (X). 
  Use the data to determine: 
a) the coefficient of correlation between demand for the item and price,
b) the proportion of the variation in demand accounted for by price.

Quizplus · Accepted Answer

The Answer of The following data represent the demand (Y) of an item at a local shop and their price (X). 
  Use the data to determine: 
a) the coefficient of correlation between demand for the item and price,
b) the proportion of the variation in demand accounted for by price.

The Following Data Represent the Demand (Y) of an Item