marital status is __. a. numerical discrete  b. numerical continuous c. categorical nominal  d. categorical ordinal                         gross income is __.  a. numerical discrete  b. numerical continuous c. categorical nominal  d. categorical ordinal                                  whether or not the individual smokes Is ___.  a. numerical discrete  b. numerical continuous c. categorical nominal  d. categorical ordinal                                  amount the individual smokes per day on a weekday Is ___.  a. numerical discrete  b. numerical continuous c. categorical nominal  d. categorical ordinal

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.