Probability and Statistics
Problems related to probability distributions, statistical inference, data analysis, etc.
Problems in this category
The problem provides a table showing the frequency of meal orders at a restaurant: Curry (29), Pizza...
Pie ChartsData AnalysisFractionsPercentages
2025/4/21
The table shows the favorite subjects of students in a class. The frequencies are: Maths: 4, Science...
FractionsPie ChartsData AnalysisPercentages
2025/4/21
40 people answered a survey about their favourite book genres. The results are displayed in a pie ch...
Pie ChartPercentagesData AnalysisProportions
2025/4/21
700 people were asked about their favorite activity. We are given a pie chart displaying the results...
Pie ChartsFractionsPercentagesData InterpretationRounding
2025/4/21
We are given a table representing the distribution of salaries (in thousands of FCFA) of 210 employe...
Descriptive StatisticsFrequency DistributionMeasures of Central TendencyMeasures of DispersionSkewnessQuartilesMeanVarianceStandard DeviationCoefficient of VariationGini IndexSalary AnalysisStatistical Analysis
2025/4/20
The problem provides a table showing the distribution of job seekers by gender and age group in a lo...
Descriptive StatisticsHistogramsFrequency PolygonsCumulative FrequencyMeasures of Central TendencyMeasures of DispersionMeanMedianQuartilesVarianceStandard DeviationCoefficient of Variation
2025/4/20
The image contains multiple-choice questions related to statistics. I will solve questions 16, 17, a...
StatisticsData AnalysisFrequency DistributionOgive CurveCumulative Frequency
2025/4/19
The problem provides the distribution of a discrete random variable $X$ and asks us to find the valu...
Discrete Random VariableProbability DistributionExpected ValueVarianceStandard DeviationModeDistribution Function
2025/4/17
A person decides to tease a neighbor's dog. The neighbor says that 30% of people teasing the dog get...
ProbabilityProbability DistributionGeometric DistributionDiscrete Random VariableDistribution SeriesProbability Polygon
2025/4/17
A person decides to tease a neighbor's dog. The dog bites in 30% of cases when people tease it. The ...
Probability DistributionRandom VariableGeometric DistributionProbability
2025/4/17