Let A be an mtimesn matrix. Explain why the equation Upper A Bold x equals Bold b has a solution for all b in set of real numbers R Superscript m if and only if the equation Upper A Superscript Upper T Baseline Bold x equals Bold 0 has only the trivial solution.

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given