Question

The table below shows the air temperature, in degrees Celsius, and the number of snowboards sold in Amy's store:

Temperature (degrees Celsius) (x)


1


-1


-2


-3


0


-4


2

Number of snowboards sold (y)


10


24


31


38


17


45


3


What is the correlation coefficient for the data and what does it represent?

0; it represents no correlation between x and y

1; it represents a perfectly linear positive correlation between x and y

1; it represents a perfectly linear negative correlation between x and y

-1;

Answer 1

-1; it represents a perfectly linear negative correlation between x and y