Question: 1.Vector multiplication (dot product): Using a dot product, calculate the variance of the following variable values by hand. Show your work and include your final

1.Vector multiplication (dot product): Using a dot product, calculate the variance of the following variable values by hand. Show your work and include your final answer. Use the matrix operators in R to calculate the same and confirm your result. Include a screenshot of your code and output. [8 2 2 3]

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