Mathematics category
Probability calculators
Chance models, event relationships and distributions.
242 calculators in this category. Page 2 of 6.
242 calculators available. Search data loads only when you use this field.
Poisson Mean from Rate and Exposure: solve event rate per exposure unit
Rearrange the poisson mean from rate and exposure relationship and solve for event rate per exposure unit.
Open calculator ProbabilityPoisson Mean from Rate and Exposure: solve total exposure
Rearrange the poisson mean from rate and exposure relationship and solve for total exposure.
Open calculator ProbabilityMarkov Transition Probability Flow
Calculate joint transition probability from source-state probability and conditional transition probability.
Open calculator ProbabilityMarkov Transition Probability Flow: solve source-state probability
Rearrange the markov transition probability flow relationship and solve for source-state probability.
Open calculator ProbabilityMarkov Transition Probability Flow: solve conditional transition probability
Rearrange the markov transition probability flow relationship and solve for conditional transition probability.
Open calculator ProbabilityEffective State Count from Entropy
Calculate effective states from state-count scale and entropy in nats.
Open calculator ProbabilityEffective State Count from Entropy: solve state-count scale
Rearrange the effective state count from entropy relationship and solve for state-count scale.
Open calculator ProbabilityEffective State Count from Entropy: solve entropy in nats
Rearrange the effective state count from entropy relationship and solve for entropy in nats.
Open calculator ProbabilityProbability-Weighted Payoff Contribution
Calculate expected-value contribution from outcome probability and outcome payoff.
Open calculator ProbabilityProbability-Weighted Payoff Contribution: solve outcome probability
Rearrange the probability-weighted payoff contribution relationship and solve for outcome probability.
Open calculator ProbabilityProbability-Weighted Payoff Contribution: solve outcome payoff
Rearrange the probability-weighted payoff contribution relationship and solve for outcome payoff.
Open calculator ProbabilityInverse Probability Weight
Calculate inverse probability weight from selection probability and weight scale.
Open calculator ProbabilityInverse Probability Weight: solve selection probability
Rearrange the inverse probability weight relationship and solve for selection probability.
Open calculator ProbabilityInverse Probability Weight: solve weight scale
Rearrange the inverse probability weight relationship and solve for weight scale.
Open calculator ProbabilityEffective Outcomes from Entropy Bits
Calculate effective outcome count from outcome base per bit and entropy in bits.
Open calculator ProbabilityEffective Outcomes from Entropy Bits: solve outcome base per bit
Rearrange the effective outcomes from entropy bits relationship and solve for outcome base per bit.
Open calculator ProbabilityEffective Outcomes from Entropy Bits: solve entropy in bits
Rearrange the effective outcomes from entropy bits relationship and solve for entropy in bits.
Open calculator ProbabilityLikelihood Geometric Factor
Calculate geometric likelihood factor from positive likelihood scale and mean log-likelihood.
Open calculator ProbabilityLikelihood Geometric Factor: solve positive likelihood scale
Rearrange the likelihood geometric factor relationship and solve for positive likelihood scale.
Open calculator ProbabilityLikelihood Geometric Factor: solve mean log-likelihood
Rearrange the likelihood geometric factor relationship and solve for mean log-likelihood.
Open calculator ProbabilityInformation Gain Difference
Calculate information gain from prior uncertainty measure and posterior uncertainty measure.
Open calculator ProbabilityInformation Gain Difference: solve prior uncertainty measure
Rearrange the information gain difference relationship and solve for prior uncertainty measure.
Open calculator ProbabilityInformation Gain Difference: solve posterior uncertainty measure
Rearrange the information gain difference relationship and solve for posterior uncertainty measure.
Open calculator ProbabilityExpected Pair Collision Count
Calculate expected collisions from candidate pair count and per-pair collision probability.
Open calculator ProbabilityExpected Pair Collision Count: solve candidate pair count
Rearrange the expected pair collision count relationship and solve for candidate pair count.
Open calculator ProbabilityExpected Pair Collision Count: solve per-pair collision probability
Rearrange the expected pair collision count relationship and solve for per-pair collision probability.
Open calculator ProbabilityMutual Information from Entropy Reduction
Calculate mutual information from marginal entropy and conditional entropy.
Open calculator ProbabilityMutual Information from Entropy Reduction: solve marginal entropy
Rearrange the mutual information from entropy reduction relationship and solve for marginal entropy.
Open calculator ProbabilityMutual Information from Entropy Reduction: solve conditional entropy
Rearrange the mutual information from entropy reduction relationship and solve for conditional entropy.
Open calculator ProbabilityConditional Entropy from Joint Entropy
Calculate conditional entropy h(x|y) from joint entropy h(x,y) and conditioning-variable entropy h(y).
Open calculator ProbabilityConditional Entropy from Joint Entropy: solve joint entropy H(X,Y)
Rearrange the conditional entropy from joint entropy relationship and solve for joint entropy h(x,y).
Open calculator ProbabilityConditional Entropy from Joint Entropy: solve conditioning-variable entropy H(Y)
Rearrange the conditional entropy from joint entropy relationship and solve for conditioning-variable entropy h(y).
Open calculator ProbabilityKullback–Leibler Divergence from Cross-Entropy Gap
Calculate kl divergence d(p||q) from cross entropy h(p,q) and source entropy h(p).
Open calculator ProbabilityKullback–Leibler Divergence from Cross-Entropy Gap: solve cross entropy H(P,Q)
Rearrange the kullback–leibler divergence from cross-entropy gap relationship and solve for cross entropy h(p,q).
Open calculator ProbabilityKullback–Leibler Divergence from Cross-Entropy Gap: solve source entropy H(P)
Rearrange the kullback–leibler divergence from cross-entropy gap relationship and solve for source entropy h(p).
Open calculator ProbabilityAbsolute Risk Difference
Calculate signed risk difference from first event risk and second event risk.
Open calculator ProbabilityAbsolute Risk Difference: solve first event risk
Rearrange the absolute risk difference relationship and solve for first event risk.
Open calculator ProbabilityAbsolute Risk Difference: solve second event risk
Rearrange the absolute risk difference relationship and solve for second event risk.
Open calculator ProbabilityRelative Risk Reduction Percentage
Calculate relative risk reduction percentage from absolute risk reduction and control-group event risk.
Open calculator ProbabilityRelative Risk Reduction Percentage: solve absolute risk reduction
Rearrange the relative risk reduction percentage relationship and solve for absolute risk reduction.
Open calculator ProbabilityRelative Risk Reduction Percentage: solve control-group event risk
Rearrange the relative risk reduction percentage relationship and solve for control-group event risk.
Open calculator ProbabilityNumber Needed from Absolute Risk Reduction
Calculate number needed from absolute risk reduction and unit probability scale.
Open calculator ProbabilityNumber Needed from Absolute Risk Reduction: solve absolute risk reduction
Rearrange the number needed from absolute risk reduction relationship and solve for absolute risk reduction.
Open calculator ProbabilityNumber Needed from Absolute Risk Reduction: solve unit probability scale
Rearrange the number needed from absolute risk reduction relationship and solve for unit probability scale.
Open calculator ProbabilityIndependent Random-Walk RMS Displacement
Calculate root-mean-square displacement from squared step length and independent step count.
Open calculator ProbabilityIndependent Random-Walk RMS Displacement: solve squared step length
Rearrange the independent random-walk rms displacement relationship and solve for squared step length.
Open calculator ProbabilityIndependent Random-Walk RMS Displacement: solve independent step count
Rearrange the independent random-walk rms displacement relationship and solve for independent step count.
Open calculator ProbabilityNormalized Mutual Information Percentage
Calculate normalized mutual information percentage from mutual information and selected entropy normalization.
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