Probability and Statistics
Problems related to probability distributions, statistical inference, data analysis, etc.
Problems in this category
The problem is about analyzing the weight of a sample of fish. We are given the following data in a ...
MedianFrequency DistributionData AnalysisStatistics
2025/4/27
The problem asks us to identify the correct transition matrix that corresponds to the given transiti...
Markov ChainsTransition MatricesProbabilityStochastic Processes
2025/4/27
The problem asks us to identify which of the four graphs (W, X, Y, and Z) best represents the data i...
Data VisualizationGraph InterpretationPercentageData Analysis
2025/4/26
The problem presents a table showing the annual profit (in millions of FCFA) of 170 Senegalese compa...
Descriptive StatisticsFrequency DistributionHistogramsFrequency PolygonsCumulative FrequencyMeasures of Central TendencyMeanStandard DeviationCoefficient of VariationModal ClassMedianMean DeviationGini IndexData Analysis
2025/4/25
The problem presents data about the number of errors made by 7 candidates during a typing test. It a...
Descriptive StatisticsData AnalysisMeanMedianModeVarianceStandard DeviationCoefficient of VariationQuartilesGraphical Representation
2025/4/25
We are given a table showing the distribution of salaries (in thousands of FCFA) of 210 employees. T...
Descriptive StatisticsMeanVarianceStandard DeviationQuartilesModal ClassCoefficient of VariationSkewnessGini IndexMedialeConcentration RangeLorenz Curve
2025/4/24
The problem presents a statistical dataset of 180 authors categorized by the number of manuals they ...
Descriptive StatisticsMeanMedianModeVarianceStandard DeviationCoefficient of VariationFrequency Distribution
2025/4/24
The problem presents a table showing the distribution of annual profits (in millions of CFA francs) ...
Descriptive StatisticsMomentsVarianceSkewnessKurtosisFrequency Distribution
2025/4/24
The problem is based on a pie chart showing the distribution of marks scored by 200 pupils. We need ...
Data AnalysisPie ChartFrequency DistributionPercentagesStatistics
2025/4/24
Based on the provided information, we have a hypothesis test with a sample size of $n=17$ and a sign...
Hypothesis TestingTest StatisticCritical ValueNull HypothesisSignificance Level
2025/4/24