Taltson lake is in the canadian northwest territories. this lake has many northern pike. the following data was obtained by two fishermen visiting the lake.
let x = length of a northern pike in inches and let y = weight in pounds.
use your calculator to draw a scatter diagram.
using the scatter diagram (no calculations), would you estimate the linear correlation coefficient to be positive, close to zero, or negative?

x (inches) 20 24 36 41 46
y (pounds) 2 4 12 15 20

using the data from #1, what is the sample correlation coefficient r ?