5.113Suppose that Y1 and Y, have correlation coefficient py,.Y, and for constants a, b, c and d letWi = a +bYj and W2 = c +dY2.a Show that the correlation coefficient between W1 and W2, pw,,w,, is such that |pr,.Y2| =lewi,wzl-b Does this result explain the results that you obtained in Exercise 5.110?

Answered: Image /qna-images/answer/69baa732-e67f-472c-b9d3-eac37ae6f638.jpg

Answered: Show that the correlation coefficient…

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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Suppose that Dr. Grandtete does some measurements and states that there is a correlation (r) of +1.2 between head circumference and 1.Q. What can you conclude from this result? That head circumference and IQ are very strongly and positively related That head circumference and IQ are weakly, but positively, related That there is a mistake because r cannot equal +1.2 That there is a mistake becauser can only be used to measure psychological variables, not physical ones like head circumference.
Q11. Simple linear correlation coefficient r can provide the direction, but not the strength of association between two continuous variables. a. TrueB. FalseC. None of the above
Let u₁, U2, U3, U4, U5 E R and define ū = U1 ՂԱԶ U3 ՂԱՃ U5 and = 2u1 +3 2u2 +3 2u3 +3 2u4 +3 2u5 +3 What is the correlation coefficient between u and ? Justify your answer.
ample 8•10. A computer while calculating correlation coefficient between two variables X and Y from 25 pairs ofobservations obtained the following results. n = 25, ΣχΕ 125, Ex2= 650, "Ey = 100, Σy-460 ΣΧΥ-508 correctly Prove that the It was, however, discovered at the time of checking that two pairs of observations were copied They noere taken as (6, 14) and (8, 6) while the correct values were (R, 12) and (6, correct value of the correlation coefficient should be 2/3.
i need the answer quickly
Q2) The following data represents the results of an experimental test, if the relation between variables take the form y=ae^(bvx) y = aeb√x X 4 7 12 15 24 y 13 10 9 7 4 * the correlation coefficient of the above (2 relation 0.9927 0.9727 0.9772 0.9977 none of all above
In a sample there are 3 male dogs and 3 female dogs. These dogs are couples such that the weight of the ith dog, and the Fi measures the weight of the ith dogs girlfriend. The correlation between M and F is exactly 1 and when the data points are graphed the slope of them are 1. Is it possible for some of these dogs to weight more than their female couple, while other dogs weight less then their female couple? And is it possible that all of the male dogs have couple female dogs that are all shorter than them?
If x and y are two correlated variables with S.D. 0, and o, and Ox Oy correlation coefficient p, find the correlation between ax + by · and are 9. cx + dy, a, b, c, d being constants. Find k for which x+ ky and x +y uncorrelated.
A correlation coefficient might not have an appropriate relationship between two variables. This can happen between two variables when A. it is highly scattered B. is nonlinear is some way C. has a directionality problem
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Show that the correlation coefficient between Wj and W2, pw,,W2, is such that |pyj.Y2| = lew1,w2l- a