The following table shows the average number of hours per night sleeping by seven men and their youngest child. Hours sleep per night of father (x) 6.7 7.1 7.2 7.9 8.1 8.2 8.2 Hours sleep per night of youngest child (y) 7.9 8.0 8.5 8.7 9.1 9.2 9.5 The relationship can be modelled by a regression line with equation y = mx +c (a) Find the correlation coefficient. (b) Write down the value of m and of c (c) Young Ramin sleeps for an average of 8.6 hours per day. Use your regression line to predict the average number of hours his father sleeps. Give your answer in hours and minutes correct to the nearest minute.
The following table shows the average number of hours per night sleeping by seven men and their youngest child. Hours sleep per night of father (x) 6.7 7.1 7.2 7.9 8.1 8.2 8.2 Hours sleep per night of youngest child (y) 7.9 8.0 8.5 8.7 9.1 9.2 9.5 The relationship can be modelled by a regression line with equation y = mx +c (a) Find the correlation coefficient. (b) Write down the value of m and of c (c) Young Ramin sleeps for an average of 8.6 hours per day. Use your regression line to predict the average number of hours his father sleeps. Give your answer in hours and minutes correct to the nearest minute.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 22PFA
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The following table shows the average number of hours per night sleeping by seven men and their youngest child. Hours sleep per night of father (x) 6.7 7.1 7.2 7.9 8.1 8.2 8.2 Hours sleep per night of youngest child (y) 7.9 8.0 8.5 8.7 9.1 9.2 9.5 The relationship can be modelled by a regression line with equation y = mx +c (a) Find the
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