Victor's user avatar
Victor's user avatar
Victor's user avatar
Victor
  • Member for 9 years, 5 months
  • Last seen more than 2 years ago
  • Toronto, Canada
77 votes
5 answers
57k views

Why is ANOVA equivalent to linear regression?

57 votes
7 answers
63k views

Why zero correlation does not necessarily imply independence

53 votes
6 answers
23k views

Is a time series the same as a stochastic process?

40 votes
3 answers
16k views

Do we need gradient descent to find the coefficients of a linear regression model?

39 votes
7 answers
9k views

Are all simulation methods some form of Monte Carlo?

29 votes
1 answer
44k views

Why stock prices are lognormal but stock returns are normal

27 votes
1 answer
16k views

How LDA, a classification technique, also serves as dimensionality reduction technique like PCA

24 votes
2 answers
124k views

What does it mean to regress a variable against another

22 votes
2 answers
61k views

Why kurtosis of a normal distribution is 3 instead of 0

21 votes
4 answers
21k views

Does a seasonal time series imply a stationary or a non stationary time series

16 votes
2 answers
2k views

What is the connection between Markov chain and Markov chain monte carlo

15 votes
2 answers
989 views

Is every non stationary series convertible to a stationary series through differencing

14 votes
2 answers
15k views

Why should we remove seasonality from a time series?

13 votes
2 answers
14k views

Why take transpose of regressor variable in linear regression

13 votes
1 answer
11k views

Why time series analysis is not considered a machine learning algorithm

12 votes
2 answers
33k views

Why is a random walk not a stationary process? [duplicate]

11 votes
2 answers
11k views

What exactly is the Box-Jenkins method for ARIMA processes?

10 votes
3 answers
5k views

Is a fat tail same as skew

10 votes
4 answers
5k views

When to use Gradient descent vs Monte Carlo as a numerical optimization technique

9 votes
1 answer
1k views

Why linear and logistic regression coefficients cannot be estimated using same method?

8 votes
1 answer
978 views

If a decision tree already has very low entropy, do we still need a random forest?

8 votes
3 answers
2k views

Can someone explain the chi squared distribution in layman's terms

6 votes
2 answers
8k views

How do I understand ANCOVA in basic layman's terms?

6 votes
3 answers
903 views

Transforming a variable when original variable does not have explantory power

5 votes
2 answers
2k views

Definition of random walk as a summation of independent random processes

5 votes
2 answers
917 views

Is there a book on applied linear algebra

4 votes
1 answer
2k views

What does confidence interval and p values mean w.r.t linear regression?

4 votes
1 answer
4k views

Do we draw samples with or without replacement when we state the central limit theorem

4 votes
2 answers
2k views

Conceptual undersanding of linear discriminant analysis

4 votes
2 answers
1k views

Beginner book on logistic regression