Question

X: 45,95,55,15,87,61,28,82,33,118,27,18Y:10,12,9,6,11,10,8,10,12,11,10,6What is the correlation coefficient of the data?

Answer 1

Explanation

The dataset given are

$X\colon45,95,55,15,87,61,28,82,33,118,27,18$

$Y\colon10,12,9,6,11,10,8,10,12,11,10,6$

The graph is given below

Using the graphing calculator,

The correlation coefficient is

$r=-0.145$