WorksheetsSET Data Science Trivia
Total questions: 30
Worksheet time: 15mins
Who can be a data scientist?
Consultant
Statistician
Software Developer
All of the above
What does a data scientist do?
Nothing, it's just a buzz word
Create reproducible code
Challenge results
All of the above
________ is a multidisciplinary which involves extaction of knowledge from large volumes of structured or unstructured data.
Data Science
Data Analysis
Descriptive Analysis
None of the above
Which of the following testing is concerned with making decisions using data?
Probability
Casual
Hypothesis
None of the above
The 3 V's of Big Data are volume, velocity, and variety.
True
False
Tableau can create worksheet-specific filters.
True
False
Mean, Median, and Mode are measure of central tendency.
True
False
A collection of facts such as test scores, drawings, photographs, and inventory figures is called
Quantity
Product
Data
Collector's item
Regardless of the kind of data processed or the kind of devices or equipment used, all data processing systems involve
Analyzing, logic determination, and coding
Input, storage, and processing
Processing, storage, and distribution
Input, processing, and output
The earliest data processing equipment were all manual-mechanical devices due to the
Needs of the time
Lack of adequate funds
Absence of electricity and adequate technology
Lack of government support
All computers have common basic functions which are
Recording, processing, and output
Input, storage, and merging
Processing, sorting, classifying, and output
Input, processing, storage, and output
Not included in data processing cycle steps
Input
Processing
Output
None of the above
Categories of data processing
Mechanical Data Processing
Electronic Data Processing
All of the above
One person's information may be another person's data
True
False
Data is raw material gathered from one or more sources
True
False
It is a process that returns to its beginning and repeats itself in the same sequence.
Repeater
Cycle
Sequential
None of the above
Which of the following is needed in K-means clustering?
Number of clusters
Defined distance metrics
Initial guess as to cluster centroids
All of the above
Which of the following is not an assumption of linear regression?
Linear relationship
Auto-correlation
Homoscedasticity
Multivariate normality
Which is not an activation function in neural networks?
PReLu
sine
ReLu
sigmoid
Which is not a hyperparameter in decision trees?
max_depth
max_features
criterion
min_samples_split
Which of the following are some of the regularization methods?
Elasticnet
.L2 Ridge
L1 LASSO
All of the above
Which of the following packages provies machine learning functionality?
gbm/pamr
Knitr
cacheSweave
All of the above
R is technically much closer to the scheme language than it is to the original _______ language.
S
C#
C++
C
Normal random numbers can be generated with rnorm() by setting seed value to:
1
2
3
4
______ prints out the function call stack after an error occurs.
traceback()
back()
trace()
All of the above
_______ applies a function over the margins of an array.
apply()
mapply()
lapply()
tapply()
What are the roles and responsibilities of a data scientist?
Data mining
Data visualization
Advising the business on the potential of data
All of the above
Which of the following characteristic of big data is relatively more concerned to data science?
Velocity
Variety
Volume
None of the above
Beyond Volume, variety and velocity are the issues of big data veracity.
True
False
Which of the following approaches should be used to ask Data Analysis questions?
Find only one solution for particular problem
Find out the question which is to be answered
Find out answers from dataset without asking question
None of the above
