Regression

How is Supervised ML represented mathematically?

            f-prediction function, x- image feature, y- output

• y=x(f)

• x=f(y)

• y=f(x)

• x=x(f)

Which of the following statements is not true about unsupervised ML?

• Data is labelled with which model is trained

• It is a learning methodology in ML   

• It is useful for identifying patterns in data 

• This learning is similar to human intelligence

What are the two types of ML classification problems in ML?

• One Class and two class classification

• Binary & multi class classification

• Classification and Regression

• Balance and Unbalanced

Which of the following is not an example of Regression?

• Prediction of rain using temperature

• Determining market trends

• Prediction of road accidents

• Filtering emails into spam or no-spam

If values in one set decrease when the values in another increase, the slope of the line would be ___.

• Negative

• Positive

• Zero

• Undefined

Which of the following is NOT true for multiple Linear Regression?

• Has set of independent variables

• Many predictors - one target

• One regression coefficient

• y = b0 + b1x1 + ……… bnxn

How many columns would be their if grade is encoded using dummy encoding?

grade = [‘A’, ‘B+’, ‘A+’, ‘A’, ‘B’, ‘B’]

• 2

• 3

• 4

• 6