Data Science Trivia 3

Question 1

Which machine learning task predicts a continuous numeric output?

Accepted Answer

Regression

Answer

Classification

Answer

Clustering

Answer

Tokenization

Question 2

What is the popular open-source library developed by Google for deep learning?

Accepted Answer

TensorFlow

Answer

Pandas

Answer

NumPy

Answer

Matplotlib

Question 3

In a confusion matrix, what are correctly predicted positive cases called?

Accepted Answer

True positives

Answer

False positives

Answer

True negatives

Answer

False negatives

Question 4

Which technique reduces the number of features while preserving variance?

Accepted Answer

PCA

Answer

KNN

Answer

SVM

Answer

RNN

Question 5

What does overfitting mean in a machine learning model?

Accepted Answer

It performs well on training data but poorly on new data

Answer

It is too simple to learn

Answer

It runs too slowly

Answer

It uses too little memory

Question 6

Which Python library is the foundation for numerical array computing?

Accepted Answer

NumPy

Answer

Flask

Answer

Django

Answer

Requests

Question 7

What is the unsupervised task of grouping similar data points called?

Accepted Answer

Clustering

Answer

Regression

Answer

Labeling

Answer

Indexing