Suppose two subject scores (Python, Java) for five students have the following values: PythonJavaStudent 146Student 225Student 3108Student 475Student 543Find covariance of Python and Java.(Your answer should be the nearest to one-hundredth, e.g., 123.45)

Let X=Python Y=Java X:4,2,10,7,4 Y:6,5,8,5,3

Answered: Suppose two subject scores (Python,…

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 two subject scores (Python, Java) for five students have the following values:

	Python	Java
Student 1	4	6
Student 2	2	5
Student 3	10	8
Student 4	7	5
Student 5	4	3

Find covariance of Python and Java.

(Your answer should be the nearest to one-hundredth, e.g., 123.45)

Definition Definition Measure of how two random variables change together. Covariance indicates the joint variability or the directional relationship between two variables. When two variables change in the same direction (i.e., if they either increase or decrease together), they have a positive covariance. When the change is in opposite directions (i.e., if one increases and the other decreases), the two variables have a a negative covariance.

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