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Hot questions
1
1 vote
1
1 answer
1.0k
1.0k views
Calculate IQR(Inter Quartile Range) of {18, 24, 19, 16, 21}?
Deep Patel
700
points
8
8
11
asked
Oct 12, 2018
general
statistics
quantile
iqr
+
–
1
1 vote
0
0 answers
1.2k
1.2k views
What are Training set, Validation set, Test set, and Gold set in supervised and unsupervised machine learning?
interview
1.4k
points
16
19
23
asked
Oct 8, 2018
Machine Learning Interview Questions
machine-learning
classification
training-set
test-set
validation-set
gold-set
+
–
1
1 vote
0
0 answers
1.1k
1.1k views
Please explain Linear Regression with an example?
paper
160
points
2
2
2
asked
Oct 11, 2018
Data Science Interview Questions
data-science
linear-regression
interview
+
–
1
1 vote
1
1 answer
855
855 views
How do you tell a permutation problem from a combination problem?
Given the questions:1. How many different groups of 4 students can be made from a class of 40?and2. How many different lists of 4 students can be made from a class of 40?...
lopezkev
160
points
2
3
5
asked
Oct 15, 2018
general
statistics
combination
permutation
+
–
1
1 vote
1
1 answer
1.2k
1.2k views
What are the issues with the QWERTY keyboard layout?
nicoleas
430
points
4
4
6
asked
Oct 6, 2018
Human Computer Interaction
hci
design
keyboard
input-devices
+
–
2
2 votes
1
answers
1 answer
962
962 views
What is the Empirical Rule?
andystanley
1.1k
points
8
9
11
asked
Oct 11, 2018
Statistics
statistics
+
–
2
2 votes
1
1 answer
954
954 views
What is the mean and standard deviation of a standard normal distribution?
mobeenraza
900
points
8
8
11
asked
Oct 11, 2018
Statistics
statistics
normal-distribution
+
–
2
2 votes
1
1 answer
1.1k
1.1k views
Six devices (A,B,C,D,E, F) are each assigned one of three IP addresses...how many different assignments are possible?
Six devices (A,B,C,D,E, F) are each assigned one of three IP addresses (IP#1, IP#2, IP#3). If threedevices are assigned IP#1, two devices are assigned IP#2, and one devic...
KenTheStatsMan
430
points
5
5
7
asked
Oct 8, 2018
general
statistics
combination
+
–
2
2 votes
1
1 answer
896
896 views
What is binomial experiment and when do we use it?
Deep Patel
700
points
8
8
11
asked
Oct 12, 2018
general
statistics
combination
permutation
+
–
1
1 vote
0
0 answers
971
971 views
What is the probability of getting a King of Hearts?
What is the probability of picking a King of Hearts in a standard 52 card deck?
Ahmed Merah
270
points
4
4
7
asked
Oct 12, 2018
general
statistics
probability
+
–
2
2 votes
1
answers
1 answer
854
854 views
What is the use of the Poisson Distribution?
Also, when would one use this distribution ?
brendan_V
630
points
6
7
9
asked
Oct 13, 2018
Statistics
statistics
poisson
+
–
1
1 vote
1
1 answer
892
892 views
Sample question of permutation and combination.
You can bring along 2 friends! you have 5 friends who want to come along. How many different groups of friends could you take with you?
Rathin
820
points
10
11
13
asked
Oct 12, 2018
general
statistics
combination
+
–
1
1 vote
1
1 answer
917
917 views
How should I reduce file size of a word document when I attach high resolution pictures?
I need to submit an assignment in Word Document format, and the size of file is so big after attaching the photos taken by my cell-phone, what should I do?
Math
450
points
5
5
9
asked
Oct 12, 2018
General
ms-word
picture
compression
+
–
2
2 votes
0
0 answers
773
773 views
Explain the Recommender Systems and give an example?
datascience
1.1k
points
10
11
19
asked
Oct 15, 2018
Machine Learning Interview Questions
recommender-system
data-science
machine-learning
interview
+
–
3
3 votes
1
1 answer
1.2k
1.2k views
What is the priority order of Either Or (EOR) when constructing truth tables
In terms of the precedence order of operative, it followings like thisOperativeOrderNOT1AND2OR3 ->4< >5But I was wondering waht would be the order of precedence for the o...
SriAmin
290
points
3
3
3
asked
Oct 3, 2018
Discrete Mathematics
discrete-math
+
–
2
2 votes
1
answers
1 answer
815
815 views
What is a discrete random variable?
Mike Banks
600
points
6
6
8
asked
Oct 12, 2018
general
statistics
+
–
0
0 votes
1
1 answer
1.7k
1.7k views
What is the two main theories of forgetting information ?
vaghelaj
390
points
4
4
5
asked
Sep 24, 2018
Human Computer Interaction
hci
+
–
2
2 votes
1
1 answer
806
806 views
Question for Discrete random variable
An investor has a 0.60 probability of making a 20000 dollar profit and a 0.40 probability of suffering a 25000 dollar loss. What is the expected value?
Rathin
820
points
10
11
13
asked
Oct 12, 2018
general
statistics
random-variable
expected-value
+
–
1
1 vote
1
1 answer
1.3k
1.3k views
What is the difference between a bar plot and a histogram?
SalimAymanElewa
140
points
1
1
3
asked
Oct 1, 2018
general
plots
histograms
statistics
+
–
3
3 votes
1
1 answer
1.3k
1.3k views
Is normalization necessary in all KNN algorithms? (Python)
I have read online articles involving KNN and its emphasis on normalization. I would like to know if all KNN functions in Python need to involve normalization? I do know ...
kalyanak.p
1.4k
points
4
5
8
asked
Sep 26, 2018
Machine Learning
knn
machine-learning
+
–
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