Calculating the variance of an random variable

Hello R-Community ,
I need to calculate the variance in this example. I have already calculated the variance manually, but it is very time-consuming. Maybe someone can help me how this works with R. Thank you for your time and consideration.Angabe

Hm...It's not clear what that screenshot is showing. The values 0.03, 0.02, etc. seem like a 3 x 2 matrix, but I'm confused by the 8, 9, 4, 6, 8, X, Y.

Sorry, I don't think it's clear what this table represents, or how it relates to the way you've loaded it into an R variable.

Please take a look at the homework policy: FAQ: Homework Policy

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