The following data, based on 450 students, are given for marks inStatistics and Economics at a certain examination.Mean marks in Statistics 40Mean marks in Economics 48S.D. of marks in Statistics 12The variance of marks in Economics 256Sum of the products of deviation of marks from their respective mean42075 Give the equations of the two lines of regression and estimatethe average marks in Economics of candidates who obtained 50 marksin Statistics.

Let X be the marks in Statistics Y be the marks in economics.

Answered: The following data, based on 450…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The mean age of children at the X College daycare center is 6. The ages are skewed in a negative direction by a large number of 3 and 4 year old students. The variance of ages is 5.1. At least 66% of the children will be between what two ages?
A person wishes to predict a woman's shoe size from her height. he has gathered this information from your female classmates. The mean height of women in your class is 64 inches, and the standard deviation is 2 inches. The mean shoe size is 8, and the standard deviation is 1. The correlation between these two variables is .5. What is the slope of the regression line?
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Please do not give solution in image format thanku
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