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Model Perspective
Model Perspective
Jul 8, 2022 · Fundamentals

Unlocking Statistics: Key Concepts from Samples to Skewness Explained

This article introduces the fundamentals of statistical analysis, covering the distinction between populations and samples, constructing frequency tables and histograms, and explaining essential descriptive measures such as mean, median, variance, standard deviation, range, skewness, kurtosis, covariance, and correlation coefficients.

correlationdescriptive statisticshistogram
0 likes · 5 min read
Unlocking Statistics: Key Concepts from Samples to Skewness Explained
Model Perspective
Model Perspective
Jun 1, 2022 · Fundamentals

Master the Basics of Statistics: Populations, Samples, and Descriptive Measures

This article introduces fundamental statistical concepts—including populations, samples, measures, parameters, descriptive and inferential statistics—explains the relationship between samples and populations, and details key descriptive metrics such as mean, variance, percentiles, box plots, violin plots, and z‑scores.

descriptive statisticspopulationsample
0 likes · 9 min read
Master the Basics of Statistics: Populations, Samples, and Descriptive Measures
Tencent Music Tech Team
Tencent Music Tech Team
May 5, 2017 · Mobile Development

Understanding iOS Core Audio: Definitions of Sample, Frame, and Packet

The article clarifies Apple’s Core Audio terminology—defining a sample as a single channel value, a frame as simultaneous samples, and a packet as one or more contiguous frames—explains why these terms are often confused across audio, networking, and codec contexts, and demonstrates the definitions with an MP3 parsing example.

Audio ProcessingCore Audioframe
0 likes · 11 min read
Understanding iOS Core Audio: Definitions of Sample, Frame, and Packet