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Top 100+ questions in Data Science
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Data Science
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votes
Q: Provide a simple example of how an experimental design can help answer a question about behavior
May 29
in
Data Science
experimental-data
data-science
probability
0
votes
Q: Explain selection bias (with regard to a dataset, not variable selection).
May 29
in
Data Science
data-science
selection-bias
probability
0
votes
Q: What is the statistical power?
May 29
in
Data Science
statistical-power
probability
0
votes
Q: What is the Central Limit Theorem? Explain it. Why is it important?
May 29
in
Data Science
central0limit-theorem
limit-theorem
0
votes
Q: Explain what a long-tailed distribution is and provide three examples of relevant phenomena that have long tails.
May 29
in
Data Science
data-science
probability
0
votes
Q: How do you assess the statistical significance of an insight?
May 29
in
Data Science
statistical-significance
data-science
0
votes
Q: You are given 40 cards with four different colors- 10 Green cards, 10 Red Cards, 10 Blue cards, and 10 Yellow cards.
May 29
in
Data Science
data-pobability
0
votes
Q: You are about to get on a plane to London, you want to know whether you have to bring an umbrella or not
May 29
in
Data Science
data-science
data-probability
0
votes
Q: Make an unfair coin fair
May 29
in
Data Science
data-probability
0
votes
Q: How can you tell if a given coin is biased?
May 29
in
Data Science
data-science
data-probability
0
votes
Q: You are at a Casino and have two dices to play with
May 29
in
Data Science
data-science
data-probability
0
votes
Q: A box has 12 red cards and 12 black cards. Another box has 24 red cards and 24 black cards.
May 29
in
Data Science
data-science
probability
+1
vote
Q: Describe Markov chains?
May 28
in
Data Science
markov-chains
markov-algo
+1
vote
Q: Walk through the probability fundamentals
May 28
in
Data Science
probability-fundamentals
probability
+1
vote
Q: Difference between convex and non-convex cost function; what does it mean when a cost function is non-convex?
May 28
in
Data Science
data
data-science
probability
data-probability
convex
non-convex
+1
vote
Q: You randomly draw a coin from 100 coins — 1 unfair coin (head-head), 99 fair coins (head-tail) and roll it 10 times.
May 28
in
Data Science
data
pobability
data-probability
+1
vote
Q: The probability that item an item at location A is 0.6, and 0.8 at location B. What is the probability that item would be found on Amazon website?
May 28
in
Data Science
data
probability
amazon
data-probability
+1
vote
Q: What is boosting?
May 28
in
Data Science
boosting
boosting-algorithm
data-boosting
+1
vote
Q: What is overfitting?
May 28
in
Data Science
overfitting
data-science
data-overfitting
+1
vote
Q: Is it beneficial to perform dimensionality reduction before fitting an SVM? Why or why not?
May 28
in
Data Science
svm
data-science
svm-fitting
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