I'll mark brainliest if its right
data are collected about the amount of time, in minutes, each band member spends practicing. how does a single outlier change the lower and upper quartiles of the collected data?

a single outlier causes the values of the quartiles to move slightly toward each other.
a single outlier causes the values of the quartiles to move slightly away from the outlier.
a single outlier doubles the values of the quartiles.
a single outlier does not affect the values of the quartiles.