why do we use standard deviation instead of variance what is normal distribution using standard deviation instead why does r use standard deviation why does r use standard deviation why do r use variance instead of standard deviation why does r use standard deviation why do you use variance as qnorm in r r uses standard deviation instead variance why is r using standard deviation why do we use variance instead of standard deviation why do we use standard deviation instead of variance? why do they use standard deviation in r what is standard deviation instead of variance what to use instead of variance in r what is the difference between standard deviation and variance r what is standard deviation why r uses standard deviation why is standard deviation used in r which distributions use standard deviation why is variance used in r with normal distribution