How sensitive to changes in water temperature are coral reefs? To find out, scientists examined data on sea surface temperatures and coral growth per year at locations in the Red Sea.

Here are the data:

Sea surface temperature	29.7	29.91	29.68	29.58	30.49	30.64	30.92
Growth	2.65	2.59	2.61	2.47	2.28	2.39	2.27

Use your calculator to find:

The mean ( 0.0001) and standard deviation ( 0.0001) for sea surface temperature:

x=x=sx=sx=

The mean (0.0001) and standard deviation ( 0.0001) for coral growth:

y=y=sy=sy=

The correlation ( 0.0001) r= .

The slope ( 0.01) of the equation of the least-squares regression line isb =

and the intercept is( 0.01) a =