Below are bivariate data giving birthrate and life expectancy information for each of twelve countries. For each of the countries, both the number of births x per one thousand people in the population and the female life expectancy y (in years) are given. These data are displayed in the Figure 1 scatter plot.Birthrate, x(number of births per 1000 pop.)Female life expectancy, y(in years)13.873.317.774.542.166.035.767.146.158.349.252.814.675.348.962.724.873.231.063.626.771.751.859.6The value of the sample correlation coefficient r for these data is approximately −0.902. Answer the following. Carry your intermediate computations to at least four decimal places, and round your answers as specified below.a. What is the value of the slope of the least-squares regression line for these data? Round your answer to at least two decimal places.b. What is the value of the y-intercept of the least-squares regression line for these data? Round your answer to at least two decimal places.

Answered: Image /qna-images/answer/51b714e6-dd84-40ab-923d-f307b338efa0.jpg

Answered: Below are bivariate data giving…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

100%

Below are bivariate data giving birthrate and life expectancy information for each of twelve countries. For each of the countries, both the number of births x per one thousand people in the population and the female life expectancy y (in years) are given. These data are displayed in the Figure 1 scatter plot.

Birthrate, x (number of births per 1000 pop.)	Female life expectancy, y (in years)
13.8	73.3
17.7	74.5
42.1	66.0
35.7	67.1
46.1	58.3
49.2	52.8
14.6	75.3
48.9	62.7
24.8	73.2
31.0	63.6
26.7	71.7
51.8	59.6

The value of the sample correlation coefficient r for these data is approximately −0.902. Answer the following. Carry your intermediate computations to at least four decimal places, and round your answers as specified below.

a. What is the value of the slope of the least-squares regression line for these data? Round your answer to at least two decimal places.

b. What is the value of the y-intercept of the least-squares regression line for these data? Round your answer to at least two decimal places.

Expert Solution