Probability and Statistics
Problems related to probability distributions, statistical inference, data analysis, etc.
Problems in this category
The problem asks to determine the direction (positive or negative) and magnitude of the given correl...
CorrelationCorrelation CoefficientStatistical Analysis
2025/5/5
The problem asks to identify the type of relationship displayed in the given scatterplot.
ScatterplotCorrelationData AnalysisVisual Inspection
2025/5/5
The problem asks to determine if there are outliers in the given dataset: 15, 21, 47, 55, 78, 65, 56...
Outlier DetectionInterquartile Range (IQR)Data AnalysisDescriptive StatisticsTukey's fences
2025/5/4
Question 19 asks whether quartiles, percentiles, and deciles divide a data set into equal groups. Qu...
Data AnalysisDescriptive StatisticsQuartilesPercentilesDecilesVarianceStandard DeviationDispersion
2025/5/4
We are given the body masses of 6 students: 35, 40, 45, 45, 50, and $y^2$. The sample mean is 41. We...
Sample MeanStatisticsAlgebra
2025/5/4
The problem provides a data set of body masses of 6 students: 35, 40, 45, 45, 50, $y^2$. The sample ...
MeanStatisticsAlgebra
2025/5/4
We are given a dataset of body masses of 6 students: 35, 40, 45, 45, 50, $y^2$. We are given that th...
Sample MeanSample Standard DeviationData Analysis
2025/5/4
The problem provides a dataset of body masses of 6 students: 35, 40, 45, 45, 50, and $y^2$. The samp...
MeanStatisticsData AnalysisAlgebra
2025/5/4
We are given a frequency distribution table and asked to calculate the geometric mean, harmonic mean...
Descriptive StatisticsGeometric MeanHarmonic MeanQuartilesFrequency Distribution
2025/5/4
The problem asks whether the interquartile range is less affected by outliers. The possible answers ...
Interquartile RangeIQROutliersDescriptive StatisticsData Analysis
2025/5/4