Probability and Statistics
Problems related to probability distributions, statistical inference, data analysis, etc.
Problems in this category
There are 15 students that are randomly and evenly assigned to three classes, which means there are ...
ProbabilityCombinatoricsConditional ProbabilityBinomial Coefficients
2025/3/13
We are given the frequency distribution of the number of heads when eight coins are tossed 256 times...
Mean DeviationStandard DeviationGeometric MeanFrequency DistributionMedianAverages
2025/3/13
We are given a set of student marks and asked to determine the correct class intervals using an incl...
Data AnalysisFrequency DistributionClass IntervalsMeanMedianModePercentilesDecilesDescriptive Statistics
2025/3/13
We are given a dataset of marks from 55 students. We need to answer questions 8 and 9 related to cla...
Data AnalysisFrequency DistributionClass IntervalsStatistics
2025/3/13
There are 15 students that are assigned to three classes evenly, meaning each class has 5 students. ...
ProbabilityCombinatoricsCombinationsConditional Probability
2025/3/13
A fair coin is tossed three times. What is the probability of tossing at least two tails?
ProbabilityCoin TossConditional ProbabilityCombinatorics
2025/3/12
A spinner is divided into three equal parts: red, blue, and green. Hayley spins the spinner twice. W...
ProbabilityIndependent EventsSpinnerProbability Calculation
2025/3/12
Dalton plans to roll a fair 6-sided die 300 times. We need to find the best prediction for the numbe...
ProbabilityExpected ValueDiscrete ProbabilityDie Roll
2025/3/12
A bag contains $a$ white balls and $b$ red balls. $k$ individuals sequentially draw a ball from the ...
ProbabilityConditional ProbabilityCombinatoricsSamplingWith ReplacementWithout Replacement
2025/3/12
We have a total of $N$ products, among which $D$ are defective. We randomly select $n$ products. We ...
ProbabilityCombinationsHypergeometric Distribution
2025/3/12