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7 marks Long answer
Explain the concept of Maximum Likelihood Estimation.
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Maximum Likelihood Estimation (MLE) is a method of estimating the parameters of a statistical model by maximizing the likelihood function, ensuring that the observed data is most probable under the assumed model.
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6 marks Long answer
Describe the process of data manipulation using Pandas.
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Data manipulation in Pandas involves loading data into DataFrames, cleaning data, filtering, grouping, and aggregating to prepare it for analysis.
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5 marks Long answer
Explain the Central Limit Theorem (CLT).
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The CLT states that the distribution of the sample means approaches a normal distribution as the sample size increases, regardless of the population's distribution.
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4 marks Medium answer
List and explain the types of Analytical Techniques.
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Types include Descriptive (summarizing data), Diagnostic (understanding causes), Predictive (forecasting future outcomes), and Prescriptive (suggesting actions).
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4 marks Medium answer
What are Percentiles, Deciles, and Quartiles?
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Percentiles divide data into 100 equal parts, Deciles into 10, and Quartiles into 4, helping to understand data distribution.
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3 marks Medium answer
Differentiate between Data Engineering and Analytics.
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Data Engineering focuses on the architecture and infrastructure for data generation, while Analytics is concerned with interpreting and analyzing data to inform decisions.
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3 marks Medium answer
What is the difference between Population Parameters and Sample Statistics?
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Population Parameters are values that describe characteristics of a whole population, while Sample Statistics are estimates derived from a subset of that population.
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2 marks Short answer
What are the key traits of Big Data?
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Key traits include Volume, Velocity, Variety, Veracity, and Value.
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2 marks Short answer
Define Skewness and Kurtosis.
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Skewness measures the asymmetry of data distribution, while Kurtosis measures the tailedness of the distribution.
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1 marks Short answer
Define Data Science.
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Data Science is the field that uses scientific methods, algorithms, and systems to extract knowledge and insights from structured and unstructured data.
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