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Board Question Paper : March 2019 — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsBoard Question Paper : March 20191 Mark
Question
The correlation co-efficient between $X$ and $Y$ is $0.4 .$ What will be the value of correlation co-efficient if $5$ is added in each observation of $X$ and $10$ is multipied to each observation $Y\ ?$
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Answer

The correlation co-efficient between $X$ and $Y$ will be $0.4$ because correlation coefficient does not change by the change of origin.

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