# Questions tagged [intuition]

Questions that seek a conceptual or non-mathematical understanding of statistics.

715 questions
Filter by
Sorted by
Tagged with
2k views

### Explain in layperson's terms why predictive models aren't causally interpretable

Imagine that you are asked to infer some causal effect -- a change in an outcome $y$ in response to some variable $x$. But, the person asking for this directs you to use a predictive model to do so. ...
9 views

### Two basic questions about icp (iterative closest point) algorithm

I am trying to learn shape analysis and a part is learning icp. I have many confusions but for now I have two basic questions: Does the point clouds need to have the same number of points for icp? ...
28 views

### In permutation test, why do we take the proportion of sampled permutations with value equal or larger than the observed value?

The tutorial I followed explains permutation testing in an intuitive way. However, it has confused me in one specific part. Why do we take as p-value the proportion/probability of permutation with ...
10 views

### Intuition underyling kinds of time series that are typically additive or typically multiplicative with examples

What is the intuition underyling the kinds of time series that are typically additive or typically multiplicative? From what I understand, additive time series are such that variations on the trend ...
29 views

### Why do we try to "Reproduce" Hilbert Spaces in Statistics?

I am trying to better understand why people are interested in "reproducing" Hilbert Spaces in Statistics and Machine Learning. I (think) understand the general idea behind Hilbert Spaces. ...
16 views

### Relation between the lattice points in ROC plot and different pairs of positive and negative classes

Suppose you have a classification problem and you get the following scores from your hypothesis: \begin{bmatrix} 0.87 & 0.30 & 0.40 & 0.10 & 0.23 & 0.70 & 0.90 & 0.60 \end{...
51 views

### Practical consequences of wrong interpretation of confidence intervals

Can you give me a simple (but preferably common) example (or R/Python simulation) of what are practical consequences of wrong interpretation of frequentist confidence intervals? Especially when they ...
1k views

### What is an intuitive interpretation for the softmax transformation?

A recent question on this site asked about the intuition of softmax regression. This has inspired me to ask a corresponding question about the intuitive meaning of the softmax transformation itself. ...
81 views

### Intuition for Wilks' theorem

I'm trying to wrap my head around why it is intuitive that (under certain conditions) the likelihood ratio statistic follows a chi-squared distribution, asymptotically. I've looked at the excellent ...
23 views

### Different way to do PCA: overall comparison

Given a dataset PCA can be performed via 3 ways: Eigenvalue decomposition Singular value decomposition Non-linear iterative partial least-squares algorithm Can anyone shed light on comparative study ...