which of the following is an example for determining the number of data points a vector would have how to find the size of the vector x_i how to determine whether a vector is a row or a column which random variable is used in multivariate convergence how to know if a vector is a row or column in math what is the direction on $x_n what dimension is x_n in j? what is the dimensionality of the random variable $x_i how to tell whether a vector is a row or column how to tell a random variable that is one row or one column how do you tell whether a vector is a row or a column how to determine if a variable is a vector which device is used to prove convergence in multivariate r? how to know which of the following vectors is a row or column? how to infer a vector is a row if the random variable $x_n is j dimensional, can i infer that mvtr what is the dimension of x_n$ how do you know if a vector is a row or a column? if random variable is j dimensional how to determine can I infer from a random variable that j-dimensional