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Data Science Interview Questions and Answers
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Questions
Data Science
+1
vote
Q: State the difference between the expected value and mean value
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
expected-value
mean-value
+2
votes
Q: What is a Linear Regression?
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
linear-regression
+2
votes
Q: Discuss ‘Naive’ in a Naive Bayes algorithm?
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
naive-bayes
naive-bayes-algorithm
+1
vote
Q: What is bias?
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
bias
+1
vote
Q: List out the libraries in Python used for Data Analysis and Scientific Computations.
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
python-libraries
data-analytics
0
votes
Q: Why do you need to perform resampling?
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
resampling
+1
vote
Q: Name three disadvantages of using a linear model
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
linear-model
+1
vote
Q: What is Prior probability and likelihood?
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
prior-probability
+3
votes
Q: Discuss Decision Tree algorithm
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
decision-tree
+1
vote
Q: Name three types of biases that can occur during sampling
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
data-sampling
+1
vote
Q: What is logistic regression in Data Science?
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
data-science-regression
+1
vote
Q: What is Data Science?
asked
May 30, 2022
in
Data Science
by
sharadyadav1986
data-science
+2
votes
Q: How do I switch from Developer to DevOps?
asked
Jan 30, 2022
in
Data Science
by
GeorgeBell
data-science
0
votes
Q: What is the difference between data analytics and data science?
asked
Nov 27, 2021
in
Data Science
by
DavidAnderson
data-science
0
votes
Q: What is the term Data Science?
asked
Nov 27, 2021
in
Data Science
by
DavidAnderson
data-science
0
votes
Q: Write a basic SQL query that lists all orders with customer information.
asked
Oct 1, 2021
in
Data Science
by
Robin
sql-query
0
votes
Q: 'People who bought this also bought…' recommendations seen on Amazon are a result of which algorithm?
asked
Oct 1, 2021
in
Data Science
by
Robin
recommendation-engine
0
votes
Q: Write the equation and calculate the precision and recall rate.
asked
Oct 1, 2021
in
Data Science
by
Robin
precision-recall-rate
0
votes
Q: How can time-series data be declared as stationery?
asked
Oct 1, 2021
in
Data Science
by
Robin
time-series
0
votes
Q: What is the significance of p-value?
asked
Oct 1, 2021
in
Data Science
by
Robin
p-value
0
votes
Q: How do you find RMSE and MSE in a linear regression model?
asked
Oct 1, 2021
in
Data Science
by
Robin
regression-model
0
votes
Q: How should you maintain a deployed model?
asked
Oct 1, 2021
in
Data Science
by
Robin
deploy-model
model-deployment
0
votes
Q: How will you calculate eigenvalues and eigenvectors of the following 3x3 matrix?
asked
Oct 1, 2021
in
Data Science
by
Robin
matrix-calculation
+1
vote
Q: What are dimensionality reduction and its benefits?
asked
Oct 1, 2021
in
Data Science
by
Robin
dimensionality-reduction
0
votes
Q: You are given a data set consisting of variables with more than 30 percent missing values. How will you deal with them?
asked
Oct 1, 2021
in
Data Science
by
Robin
data-sets
+1
vote
Q: In your choice of language, write a program that prints the numbers ranging from one to 50.
asked
Oct 1, 2021
in
Data Science
by
Robin
number-print
0
votes
Q: What are the feature selection methods used to select the right variables?
asked
Oct 1, 2021
in
Data Science
by
Robin
feature-selection-methods
0
votes
Q: How do you build a random forest model?
asked
Oct 1, 2021
in
Data Science
by
Robin
random-forest-model
+1
vote
Q: Explain the steps in making a decision tree.
asked
Oct 1, 2021
in
Data Science
by
Robin
decision-tree
0
votes
Q: How is logistic regression done?
asked
Oct 1, 2021
in
Data Science
by
Robin
logistic-regression
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