Machine Learning Quiz Mtech

Logistic regression mainly used for predicting continuous target variable

• Cannot answer (Need more information)

• False

• True

Which is not an example of Logistic Regression?

• Email Spam Detection

• Disease Prediction

• Credit Card Fraud Detection

• Stock price prediction

• 0.54

• 0.68

• 0.99

• 0.88

Logistic regression mainly used for Regression

• False

• True

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = -8x + 0.67

• y = x + 10

• y = 0.67x - 8

What is a perceptron?

• A type of neural network used for unsupervised learning

• A type of artificial neuron used for binary classification

• A type of reinforcement learning algorithm

• A type of activation function

A logistic regression has the same assumptions as the linear regression except for?

• Autocorrelation

• Homoscedasticity

• Linearity

• Nonlinearity

What role does the learning rate play in Gradient Descent?

• It controls the number of iterations in the training process

• It adjusts the bias values of the model

• It determines the size of the steps taken towards the minimum of the cost function

• It specifies the initial value of the weights

What is the main limitation of perceptron?

• It is sensitive to feature scaling

• It requires a large number of training examples

• It cannot learn non-linear decision boundaries

• It has a slow convergence rate

Suppose you are fitting a linear model (M1) and a 10th degree polynomial model (M2) to data generated from a cubic function with Gaussian noise. Which of the following statements is correct regarding their bias and variance?

• Bias(M1) ≤ Bias(M2), Variance(M1) ≤ Variance(M2)

• 
  Bias(M1) ≤ Bias(M2), Variance(M1) ≥ Variance(M2)

• 
  Bias(M1) ≥ Bias(M2), Variance(M1) ≤ Variance(M2)

• Bias(M1) ≥ Bias(M2), Variance(M1) ≥ Variance(M2)