Creates 4 matrices, a, b, c, and d, of size 3x4, 4x2, 2x3, and 3x1. you can use randomized or hardcode values for the entries. output each of these matrices. c. computes the product e = abc and outputs the resulting matrix. (note: this is matrix multiplication not simple elementwise multiplication.) d. prints the transpose of e.

Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.