Page 191 - Artificial Intellegence_v2.0_Class_11
P. 191

2.   What measure of central tendency is calculated by adding all the values and dividing the sum by the number of
                          values?
                          a.  Median                                     b.  Mean
                          c.  Mode                                       d.  Typical value
                     3.   Which among the following is an unordered collection of objects?

                          a.  Matrix                                     b.  Vector
                          c.  Determinant                                d.  Set
                     4.   In which type of linear regression, the two variables vary linearly?

                          a.  Complex                                    b.  Multiple
                          c.  Simple                                     d.  Logistic
                     5.   Which of these combines the result of both Left Join and Right Join?
                          a.  Right Outer Join                           b.  Left Outer Join

                          c.  Full Outer Join                            d.  Inner Join
                     6.   Which among the following is a matrix with all elements zero except its leading diagonal?
                          a.  Row matrix                                 b.  Column matrix
                          c.  Diagonal matrix                            d.  Unit matrix

                     7.   The               is the value that appears most often in a given list of numbers.
                          a.  Mean                                       b.  Mode
                          c.  Median                                     d.  Difference
                     8.   What will be the order of the product matrix after multiplying the following?

                           1
                           
                           3
                              3   4  2 
                           2  
                           
                          a.  3 x 3                                      b.  3 x 1
                          c.  1 x 3                                      d.  4 x 3
                     9.   Which join returns all records from the left table, and the matching records from the right table?
                          a.  Full Join                                  b.  Inner Join
                          c.  Right Outer Join                           d.  Left Outer Join

                     10.  Which line passes close to most of the data points in a scatterplot?
                          a.  Linear Regression                          b.  Line of best-fit
                          c.  Fitting Line                               d.  Either a or b

                 B.   Fill in the blanks.
                     1.                  are an organised collection of objects and can be represented in capital letters.

                     2.   A               is defined as a list of numbers in one-dimensional form.
                     3.   The                 method  is a  form of  mathematical  regression analysis used  to  determine the  line of
                          best-fit for a data set.
                     4.   We need               to help turn observations into information and answer questions about observation samples.

                     5.                  is a statistic that measures the degree of dispersion of a data set relative to its average.

                     6.   Each of these small segments, like the range 0–1 Hz, is termed a   .

                                                                                                 Maths for AI   189
   186   187   188   189   190   191   192   193   194   195   196