Question: Using R language . Please review column slicing of data frames. Also review again variance and standard deviation. Extract as vectors hp asnd wt from

Using R language . Please review column slicing of data frames. Also review again variance and standard deviation. Extract as vectors "hp" asnd "wt" from mtcars in few different ways. Save these 2 vectors in variables names "hpvector" and "wtvector". Then compute the mean and standard deviation of horse powers and weights of the cars.

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