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Which of the following is used to find variance of all values?

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Which of the following is used to find variance of all values? (a) var() (b) sd() (c) mean() (d) anova() This question was posed to me in my homework. This is a very interesting question from Visualizing Data topic in portion Commands, Packages, Visualizing Data and Linear Regression of R Programming Select the correct answer from above options

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Correct option is (a) var() For explanation: sd() is used to calculate standard deviation.

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