FREE Certified Data Professional (Big Data Science) Questions and Answers

Question 1

Using a weighted average in

Accepted Answer

Forecasting

Answer

Classification

Answer

Regression

Answer

Above All

Question 2

Why is Machine Learning Used in Data Science?

Accepted Answer

For Prediction

Answer

For Visualization

Answer

All the above

Answer

For Cleaning

Question 3

Which of the following is a measure of spread for a random variable?

Accepted Answer

Standard deviation

Answer

Empirical mean

Answer

All of the mentioned

Answer

Variance

Question 4

Which of the following traits best describes processed data?

Accepted Answer

None of the mentioned

Answer

Hard to use for data analysis

Answer

All steps should be noted

Answer

Data is not ready for analysis

Question 5

Using sequential modeling,

Accepted Answer

RNN

Answer

CNN

Answer

KNN

Answer

ANN

Question 6

It is best to simply process raw data once.

Accepted Answer

FALSE

Answer

TRUE

Question 7

In which of the following diagrams is correlation shown?

Accepted Answer

Corrgram

Answer

Triangle

Answer

Boxplot

Answer

Histogram