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Statistics is a fundamental component of data science, playing a crucial role in extracting meaningful insights from data. In data science, statistics is used to summarize, analyze, and interpret datasets. Here’s an overview of the key aspects of statistics in the context of data science:
1. Descriptive Statistics:
- Descriptive statistics are used to summarize and describe the main features of a dataset. This includes measures of central tendency (mean, median, mode) and measures of dispersion (variance, standard deviation, range).
- Measures of Central Tendency: Provide a central or typical value of a dataset, indicating its “center” (mean), “middle” (median), or most frequent value (mode).
- Measures of Dispersion: Offer insights into the spread or variability of data, helping understand how much individual data points differ from the central tendency.
2. Inferential Statistics:
- Inferential statistics involves making inferences and predictions about a population based on a sample of data. This includes hypothesis testing, confidence intervals, and regression analysis.
- Hypothesis Testing: Allows us to draw inferences about population parameters based on sample data, assessing…