20IT211 Data Science
Authored by Preethi Muthukumar
Information Technology (IT)
Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Select the main purpose of data exploration. U/CO2
To build machine learning models
To identify patterns and insights in data
To perform system testing
To store data efficiently
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose the best representation of a measure of central tendency in a dataset. U/CO2
Variance
Standard Deviation
Mean
Range
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A_____ is an enhanced form of a simple scatterplot where more than two dimensions can be included in the chart and studied simultaneoulsy R/CO2
scatter multiple
Histogram
Bar chart
Scatter plot
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does a box plot NOT show? R/CO2
Mean
Median
Outliers
Interquartile range
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify the limitation of visualizing more than three attributes on a two-dimensional medium. U/CO2
Increased clarity
Reduced need for dimensionality reduction
Difficulty in capturing complex patterns
Better layout control
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A positively skewed distribution has___ . R/CO2
Mean > Median > Mode
Mean < Median < Mode
Mean = Median = Mode
Mean = Mode > Median
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calculate the Interquartile Range (IQR) for the dataset: [6, 7, 8, 9, 10, 11, 12, 13, 14] R/CO2
5
4
6
3
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