CT (507)

What is the main rule for data analysis?

• Collect data

• Present the graph

• Plot the data

• Choose the right chart

Why do we need to prepare data?

• Data might be invalid.

• Data might need to be transformed.

• Data might have outliers.

• All of the above.

Which are the 2 approaches of Data Analysis?

• Historical Data & Experimentation

• Historical Data & Graphical Data Analysis

• Experimentation & Regression Analysis

• Experimentation & Hypothesis Testing

Which is not a tool for Graphical Data Analysis?

• Bar Chart

• Box Plot

• Linear Regression

• Scatter Plot

Google Home and Alexa is example of ML

• True

• False

Excel, Python/R,Tableau,Power Bi are used for ?

• Data Base Management

• Data Transformation

• Data Modelling

• Data Visualization

Which graph is better for CATEGORICAL VARIABLE?

• bargraph

• histogram

• scatterplot

• dotPlot

Which of the following is performed by Data Scientist ?

• Define the question

• Create reproducible code

• Challenge results

• All of the Mentioned

Which of the following term is appropriate to the above figure ?

• Large Data

• Big Data

• Dark Data

• None of the mentioned

Which of the following best describes the principal goal of data science?

• To collect and archive exhaustive data sets from various source systems for corporate record keeping uses

• To mine and analyze large amounts of data in order to uncover information that can be used for operational improvements and business gains

• To collect and prepare data for use as part of analytics applications

• None of the mentioned