Lookup probabilities for fixed trials with binary outcomes
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Comprehensive probability table displaying binomial values across multiple parameter combinations. Features exact probabilities P(X=k) and cumulative probabilities P(X≤k) for various trial counts, success rates, and outcome values. Organized grid format with pre-calculated values covering common statistical scenarios.
Standard normal probability table showing cumulative probabilities for z-scores. Grid displays values from -3.99 to +3.99 with two-decimal precision. Provides percentile conversions and area calculations under the normal curve. Includes both positive and negative z-value ranges.
Find critical t-values for hypothesis tests and confidence intervals
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Critical value reference table for t-distribution across degrees of freedom and significance levels. Features separate columns for one-tailed and two-tailed tests. Covers df ranges from 1 to 120+ and multiple alpha levels including 0.10, 0.05, 0.025, 0.01, and 0.005.
Calculate probabilities for events occurring at constant rates
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Event probability table displaying Poisson values for different lambda rates and event counts. Shows exact probabilities P(X=k) and cumulative distributions. Covers lambda values from 0.1 to 15+ with pre-calculated exponential terms for rare event scenarios.