Data Science for Beginners

Which branch of applied mathematics is highly involved in Data Science?

• Real Analysis

• Statistics

• Trigonometry

• Differential Equations

Which of the following best describes a data visualisation?

• Presenting related data so that a user can see individual items of data

• Data is accessible and no data is hidden

• A visual representation that communicates relationships among the data

• A collection of graphs in a scientific report

What is the following data type?

d = {'apple': 2.50, 'banana': 5.70, 'coconut': 3.80}

• list

• dictionary

• tuple

• set

What will be the output?

name = 'Dave'

greeting = "Good morning " + name

print (greeting)

• Good moning 'Dave'

• Good morning Dave

• Good morning name

• Good morning + Dave

The image shown is a dashboard of an infographic?

• dashboard

• infographic

Which of the following skill(s) is(are) essential for a data scientist?

(Hint: can select more than one answer)

• Programming skill

• Statistical Interpretation

• Machine Learning

• Accounting

Which of the following is(are) performed by Data Scientist?

(Hint: can select more than one answer)

• evaluate model performance

• Interpret and visualise results

• manage database

• setting up web server

Data has been collected on visitors' viewing habits on Netflix. Which technique is relevant to the arrangement of the list of movies that shown on the visitor's landing page?

• clustering

• recommender

• classification

• regression

Which of the following is a potential use case of data science in manufacturing?

• preventive maintenance prediction

• customer profiling

• robotic process automation

• sentiment analysis

Which of the following is not a data source commonly used in data science?

• json files from social media posts

• csv files from sensor's data logger

• web pages from scraping

• survey questionnaires form