Question

Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone.

x	1004	975	992	935	981	926
y	40	100	65	145	75	147

(c) Use a calculator to verify that

x = 5813,

x² = 5,636,767,

y = 572,

y² = 64,084

and

xy = 547,412.

Compute r. (Round your answer to three decimal places.)

Answer 1