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WorksheetsData Science Questions
Total questions: 15
Worksheet time: 8mins
Which of the following are "Measures of Central Tendency"?
Range, Standard Deviation, Variance
Mean,Range, Mode
Mean, Standard Deviation, Range
Mode, Mean, Median
Pick Lazy Algorithm
RNN
CNN
K-Mean
KNN
Sequential Modelling is done on
ANN
RNN
KNN
CNN
Point out the correct statement:
Data Cleaning focuses on prediction, based on known properties learned from the training data.
Machine learning focuses on prediction, based on known properties learned from the training data
Representing data in a form which both mere mortals can understand and get valuable insights is as much a science as much as it is art
None of the Mentioned
Which of the following is performed by Data Scientist
Define the question
Create reproducible code
Challenge results
All of the above
Data has been collected on visitors' viewing habits at a bank's website. Which technique is used to identify pages commonly viewed during the same visit to the website?
Clustering
Association Rules
Classification
Regression
You submit a MapReduce job to a Hadoop cluster and notice that although the job was successfully submitted, it is not completing. What should you do?
Ensure that a DataNode is running
Ensure that the JobTracker is running
Ensure that the NameNode is running
Ensure that the TaskTracker is running
You have been assigned to run a logistic regressionmodel for each of 100 countries, and all the data is currently stored in a PostgreSQL database. Which tool/library would you use to produce these models with the least effort?
MADlib
Mahout
RStudio
HBase
Which of the following of a random variable is a measure of spread?
Empirical mean
Standard deviation
Variance
All of the above
Which of the following testing is concerned with making decisions using data?
Probability
Casual
Hypothesis
Non of the above
Which of the following model is usually gold standard for data analysis?
Inferential
Casual
Descriptive
All of the above
Weighted Average is used in
Forecasting
Classification
Regression
All of the above
Will filters work when we do data blending?
True
False
Which of the following is characteristic of Processed Data?
All steps should be noted
Hard to use for data analysis
Data is not ready for analysis
None of the above
Which of the following diagram is used to view correlation?
Corrgram
Triangle
Boxplot
Histogram
