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c.    train,   test,y train,y test train test split test si e  . )

                  b.    train,   test,y train,y test train test split  ,test si e  . )
            Ans.  a.      train,   test,y train,y test train test split  ,y,test si e  . )

               .   hich of the follo ing statements is true for  ean  quared  rror     ) in regression
                  a.      is the sum of squared distances bet een our target variable and predicted values
                  b.      is the sum of the cube of distances bet een our target variable and predicted values.
                  c.      is the sum of distances bet een our target variable and predicted values.
                  d.      is the sum of distances bet een our median and mean values.
            Ans.  a.        is the sum of squared distances bet een our target variable and predicted values
               .   hich of the follo ing is the reason to use  ean  quared  rror     )

                  a.  It cannot be compared to  ean Absolute  rror.
                  b.  It is sensitive to ards outliers.
                  c.  It is good to use if the target data is not distributed around the mean value.
                  d.   he range of     is bet een   to  .

            Ans.  b.    It is sensitive to ards outliers.
               .  A loss function is a measure of ho  good a prediction model is in terms of being able to predict the e pected
                 outcome.
                   i)    he loss function  ill output a lo er number, if the predictions are good.
                   ii)    he loss function  ill output a greater number, if the predictions are incorrect.
                   hoose the correct option

                  a.  Only  i) is correct                        b.  Only  ii) is correct
                  c.   ither  i) or  ii) is correct              d.   oth  i) and  ii) are correct
            Ans.  d.   oth  i) and  ii) are correct
               .   hich of these are common split percentages bet een  rain and  est Data

                   i)   rain    ,  est
                   ii)   rain     ,  est
                   iii)  rain     ,  est
                   iv)  rain     ,  est
                   hoose the correct option

                  a.   i) and  ii)                               b.   ii),  iii) and  iv)
                  c.   ii) and  iv)                              d.   i),  ii) and  iii)
            Ans.  b.     ii),  iii) and  iv)
               .   hich of the follo ing is a key success factor to be considered in designing an Al model
                  a.  Initiative                                 b.   isual modelling

                  c.   ffective evaluation                       d.   odel validation
            Ans.  d.     odel validation









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