Lab Notes: Statistics Archives - Laboratory Notes https://www.laboratorynotes.com/category/lab-notes-statistics/ Mon, 22 Sep 2025 11:03:43 +0000 en hourly 1 https://wordpress.org/?v=6.9 T-test https://www.laboratorynotes.com/t-test/ https://www.laboratorynotes.com/t-test/#respond Mon, 15 Sep 2025 23:02:05 +0000 https://www.laboratorynotes.com/?p=25465 A t-test is a statistical test used to determine whether there is a significant difference between the means of two...

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]]> https://www.laboratorynotes.com/t-test/feed/ 0 Statistical Assumption https://www.laboratorynotes.com/statistical-assumption/ https://www.laboratorynotes.com/statistical-assumption/#respond Mon, 15 Sep 2025 22:56:51 +0000 https://www.laboratorynotes.com/?p=25463 Statistical assumptions are the underlying conditions or requirements that must be satisfied for a statistical method, model, or test to...

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]]> https://www.laboratorynotes.com/statistical-assumption/feed/ 0 Machine Learning Model https://www.laboratorynotes.com/machine-learning-model/ https://www.laboratorynotes.com/machine-learning-model/#respond Mon, 15 Sep 2025 16:58:52 +0000 https://www.laboratorynotes.com/?p=25461 A machine learning (ML) model is a computational algorithm or system designed to learn patterns and relationships from data in...

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]]> https://www.laboratorynotes.com/machine-learning-model/feed/ 0 Statistical Model https://www.laboratorynotes.com/statistical-model/ https://www.laboratorynotes.com/statistical-model/#respond Mon, 15 Sep 2025 16:52:08 +0000 https://www.laboratorynotes.com/?p=25459 A statistical model is a mathematical framework that represents the process generating data in order to analyze, interpret, and make...

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]]> https://www.laboratorynotes.com/statistical-model/feed/ 0 Regression Analysis https://www.laboratorynotes.com/regression-analysis/ https://www.laboratorynotes.com/regression-analysis/#respond Mon, 15 Sep 2025 16:48:18 +0000 https://www.laboratorynotes.com/?p=25456 Regression analysis is a powerful statistical technique used to study the relationship between a dependent variable (often called the outcome...

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]]> https://www.laboratorynotes.com/regression-analysis/feed/ 0 Type II Error https://www.laboratorynotes.com/type-ii-error/ https://www.laboratorynotes.com/type-ii-error/#respond Mon, 15 Sep 2025 16:46:14 +0000 https://www.laboratorynotes.com/?p=25454 A Type II error occurs in hypothesis testing when a researcher fails to reject a false null hypothesis (H₀). In...

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]]> https://www.laboratorynotes.com/type-ii-error/feed/ 0 Type I Error https://www.laboratorynotes.com/type-i-error/ https://www.laboratorynotes.com/type-i-error/#respond Mon, 15 Sep 2025 16:42:11 +0000 https://www.laboratorynotes.com/?p=25452 A Type I error is a fundamental concept in hypothesis testing that occurs when a researcher incorrectly rejects a true...

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]]> https://www.laboratorynotes.com/type-i-error/feed/ 0 False Discovery Rate https://www.laboratorynotes.com/false-discovery-rate/ https://www.laboratorynotes.com/false-discovery-rate/#respond Mon, 15 Sep 2025 16:38:45 +0000 https://www.laboratorynotes.com/?p=25450 The False Discovery Rate (FDR) is a statistical concept used to control the expected proportion of incorrect rejections of the...

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]]> https://www.laboratorynotes.com/false-discovery-rate/feed/ 0 Alternative Hypothesis https://www.laboratorynotes.com/alternative-hypothesis/ https://www.laboratorynotes.com/alternative-hypothesis/#respond Mon, 15 Sep 2025 16:22:26 +0000 https://www.laboratorynotes.com/?p=25448 The alternative hypothesis (H₁ or Ha) is a key concept in hypothesis testing that represents the statement researchers aim to...

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]]> https://www.laboratorynotes.com/alternative-hypothesis/feed/ 0 Null Hypothesis https://www.laboratorynotes.com/null-hypothesis/ https://www.laboratorynotes.com/null-hypothesis/#respond Mon, 15 Sep 2025 16:18:39 +0000 https://www.laboratorynotes.com/?p=25446 The null hypothesis (H₀) is a central concept in hypothesis testing and inferential statistics. It represents a baseline or default...

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]]> https://www.laboratorynotes.com/null-hypothesis/feed/ 0 Hypothesis Testing https://www.laboratorynotes.com/hypothesis-testing/ https://www.laboratorynotes.com/hypothesis-testing/#respond Mon, 15 Sep 2025 16:04:03 +0000 https://www.laboratorynotes.com/?p=25444 Hypothesis testing is a fundamental statistical method used to make inferences or draw conclusions about a population based on data...

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]]> https://www.laboratorynotes.com/hypothesis-testing/feed/ 0 Word Cloud https://www.laboratorynotes.com/word-cloud/ https://www.laboratorynotes.com/word-cloud/#respond Mon, 15 Sep 2025 15:18:36 +0000 https://www.laboratorynotes.com/?p=25442 A word cloud is a visual representation of textual data in which words are displayed in varying sizes, colors, or...

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]]> https://www.laboratorynotes.com/word-cloud/feed/ 0 Tree Map https://www.laboratorynotes.com/tree-map/ https://www.laboratorynotes.com/tree-map/#respond Mon, 15 Sep 2025 10:51:52 +0000 https://www.laboratorynotes.com/?p=25421 A tree map is a visualization technique used to represent hierarchical data through nested rectangles, where the size and color...

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]]> https://www.laboratorynotes.com/tree-map/feed/ 0 Choropleth Map https://www.laboratorynotes.com/choropleth-map/ https://www.laboratorynotes.com/choropleth-map/#respond Mon, 15 Sep 2025 10:47:54 +0000 https://www.laboratorynotes.com/?p=25419 A choropleth map is a thematic map in which areas are shaded, colored, or patterned in proportion to a statistical...

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]]> https://www.laboratorynotes.com/choropleth-map/feed/ 0 Sankey Diagram https://www.laboratorynotes.com/sankey-diagram/ https://www.laboratorynotes.com/sankey-diagram/#respond Mon, 15 Sep 2025 10:27:40 +0000 https://www.laboratorynotes.com/?p=25417 A Sankey diagram is a type of flow diagram used to visualize the movement or transfer of resources, values, or...

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]]> https://www.laboratorynotes.com/sankey-diagram/feed/ 0 Quantile-Quantile plot (Q-Q plot) https://www.laboratorynotes.com/quantile-quantile-plot-q-q-plot/ https://www.laboratorynotes.com/quantile-quantile-plot-q-q-plot/#respond Mon, 15 Sep 2025 10:21:45 +0000 https://www.laboratorynotes.com/?p=25415 A Quantile-Quantile plot (Q-Q plot) is a statistical visualization technique used to assess whether a dataset follows a particular theoretical...

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]]> https://www.laboratorynotes.com/quantile-quantile-plot-q-q-plot/feed/ 0 Pair Plot https://www.laboratorynotes.com/pair-plot/ https://www.laboratorynotes.com/pair-plot/#respond Mon, 15 Sep 2025 10:18:50 +0000 https://www.laboratorynotes.com/?p=25413 A pair plot is a visualization technique used to explore the relationships among multiple variables in a dataset by plotting...

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]]> https://www.laboratorynotes.com/pair-plot/feed/ 0 Scatterplot Matrix https://www.laboratorynotes.com/scatterplot-matrix/ https://www.laboratorynotes.com/scatterplot-matrix/#respond Mon, 15 Sep 2025 10:15:16 +0000 https://www.laboratorynotes.com/?p=25411 A scatterplot matrix (often abbreviated as SPLOM) is a data visualization technique used to explore relationships among multiple variables simultaneously....

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]]> https://www.laboratorynotes.com/scatterplot-matrix/feed/ 0 Parallel Coordinates Plot https://www.laboratorynotes.com/parallel-coordinates-plot/ https://www.laboratorynotes.com/parallel-coordinates-plot/#respond Mon, 15 Sep 2025 10:12:09 +0000 https://www.laboratorynotes.com/?p=25409 A parallel coordinates plot is a visualization technique designed to represent multidimensional data in a two-dimensional space. Unlike traditional charts,...

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]]> https://www.laboratorynotes.com/parallel-coordinates-plot/feed/ 0 Facet Grid https://www.laboratorynotes.com/facet-grid/ https://www.laboratorynotes.com/facet-grid/#respond Mon, 15 Sep 2025 09:25:35 +0000 https://www.laboratorynotes.com/?p=25407 A facet grid is a powerful visualization technique used to display multiple subplots of the same type of chart, organized...

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