Raspunsuri la Exameul de Statistica (teorie) - Siscan Natalia

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March 2013 Theoretical Questions 1. Definition the statistics as science 2. Main objectives of Statistics 3. Steps of statistical investigation 4. Descriptive Statistics (definition, purpose 5. Inferential Statistics (definition, purpose) 6. Types of Data 7. Data Summarizing. Frequency: absolute, relative, cumulated. Frequency Distribution 8. Measures of central tendency for ungrouped data – definition and formula 9. Measures of central tendency for grouped data: discrete and continuous frequency distribution (means, mode, median, quartiles – definition and formula) 10. Comparing the Central Tendency Measures ( symmetric distribution or a symmetric distribution, skewed distribution) Problem Computing the measures of central tendency for ungrouped data (all means, mode, median, quartiles) Computing the measures of central tendency for grouped data (weighted arithmetic mean, mode, median, quartiles) Drawing the polygon of frequencies, histogram, cumulate. ogive and pie chart Analyzing the character distribution of the dataset ...