Basics 1 min read
What Is Non-destructive Testing?
Non-destructive testing (NDT) is a wide group of analysis techniques used in science and technology industry to evaluate the properties…
THE ARCHIVES
Author: Prabhu TL.
Prabhu TL is a SenseCentral contributor covering digital products, entrepreneurship, and scalable online business systems. He focuses on turning ideas into repeatable processes—validation, positioning, marketing, and execution. His writing is known for simple frameworks, clear checklists, and real-world examples. When he’s not writing, he’s usually building new digital assets and experimenting with growth channels.
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Statistics – Circular Permutation
Circular permutation is the total number of ways in which n distinct objects can be arranged around a fix circle.…
Statistics 2 min read
Statistics – Cluster sampling
In cluster sampling, groups of elements that ideally speaking, are heterogeneous in nature within group, and are chosen randomly. Unlike stratified sampling where…
Statistics 1 min read
Statistics – Chi Squared table
The numbers in the table represent the values of the χ2χ2 statistics. Areas of the shaded region (A) are the column indexes.…
Statistics 2 min read
Statistics – Chi-squared Distribution
The chi-squared distribution (chi-square or X2X2 – distribution) with degrees of freedom, k is the distribution of a sum of the squares…
Statistics 2 min read
Statistics – Chebyshev’s Theorem
The fraction of any set of numbers lying within k standard deviations of those numbers of the mean of those…
Statistics 1 min read
Statistics – Central limit theorem
If the population from which the sample has a been drawn is a normal population then the sample means would be equal…
Statistics 1 min read
Statistics – Boxplots
The box plot is a standardized way to display the distribution of data based on following five number summary. 1. Minimum…
Statistics 1 min read
Statistics – Z table
Standard Normal Probability Table The following table shows the area under the curve to the left of a z-score: z…
Statistics 1 min read
Statistics – Weak Law of Large Numbers
The weak law of large numbers is a result in probability theory also known as Bernoulli’s theorem. Let P be…
Statistics 2 min read
Statistics – Venn Diagram
Venn diagram is a way to visually represents relationship between groups of entities or objects. Venn diagrams are comprised of…
Statistics 1 min read
Statistics – Variance
A variance is defined as the average of Squared differences from mean value. Combination is defined and given by the…