Let x be the following vector: x = [0.0, 0.2, 0.4, 0.6. ..., 48.0). 1. (2%) Write an Octave statement to determine the total number of elements in x. (Octave statement only, no results required.) 2. (2%) Write an Octave statement to determine the index of the middle element in x. (Octave statement only, no results required.) 3. (4%) Write two ways to create the vector x. (Octave statement only, no results required.)